Bubble net Audio Channel on June 6th. From the birth of the first innovative 2.1 speaker PCWorks 2.1 to now, the multimedia speaker industry in China has developed for more than ten years. It can be said that while people are demanding more and more sound, they are also very picky about the appearance of products. Wood veneer, piano paint, wire drawing and other technologies are integrated into the products, resulting in a variety of design styles.

　　　 Note: The "domestic" mentioned by the author in the title refers to the domestic multimedia speaker market, not domestic brands, and does not include high-end audio.

Innovating the first 2.1 speaker PCWorks 2.1

◎ Tips

　　　 PCWorks was originally a subsidiary of Creative in the United States, a sub-brand of multimedia speakers of CambrIDE SoundWorks, a famous Hi-Fi factory. PCWorks speakers were designed by the Emmy Award winner, a world audio authority, and entered the China market in 1997. At that time, PCWorks 2.1 was the first to introduce the concept of X.1 speakers, and the application of independent subwoofers greatly improved the sound quality of speakers.

　　　 In these years, how many products have left a deep impression on us with novel designs? If you want to know the answer, let’s take a look at the most beautiful speakers selected by the author in the domestic multimedia speaker market.

● Generation V6cs

　　　 Appearance innovation: ★★★★
　　　 Word of mouth evaluation: ★★★★★
　　　 Comprehensive evaluation: ★★★★☆.

　　　 Generation V6cs, this speaker impacted the domestic multimedia speaker market at the price of around 500 yuan in 2005, which brought unprecedented pressure to 2.1 speakers. Its unique styling design and excellent sound quality performance have so far made many users forget it.

Generation V6cs

Generation V6cs

　　　 The subwoofer of this era V6cs speaker is the highlight of this speaker. The front panel of the subwoofer is designed with a butterfly-shaped metal baffle and is convex. Inside the subwoofer is a 6-inch long-stroke bass unit, and there is an orange power lamp below, which can emit faint light through the front baffle to make the finishing touch.

　　　 In terms of satellite box, this speaker uses a 3-inch full-frequency antimagnetic unit, which was a model that was used more in the generation of speakers at that time. There is also a passive unit behind the satellite box, which lays the foundation for improving the overall sound quality.

● Grand Pole A6

　　　 Appearance innovation: ★★★★★
　　　 Word of mouth evaluation: ★★★★★
　　　 Comprehensive evaluation: ★★★★★

　　　 In the early years, Taiji Dian was also a leader in the multimedia speaker market in China. Later, with the development, they gradually moved closer to the professional field and separated from the ordinary consumer groups. However, we have to admit the success of the A6 2.1 multimedia speaker of Dajidian.

Dajidian A6

　　　 The A6 speaker of this grand classic adopts the design of vacuum tube preamplifier, which satisfies the users who have high requirements on dynamics and sound quality. From the modeling point of view, it is even better than the previous generation V6cs, with a unique metal panel and a black piano paint box on both sides, all of which make the Grand Pole A6 not lose to any 2.1 multimedia speaker sold at that time.

　　　 In addition to the characteristics of half the multimedia speakers, we can see a unique feature in this grand classic A6, that is, there is a control called "phase switch" on the back of the speaker, which can only be seen on high-end audio. However, for the first time, Taiji Dian introduced this concept into multimedia speakers, which inadvertently became the focus at that time.

● hivi T120

　　　 Appearance innovation: ★★★★★
　　　 Word of mouth evaluation: ★★★★★☆.
　　　 Comprehensive evaluation: ★★★★★☆.

　　　 Hivi can be said to enjoy a high evaluation in the domestic multimedia speaker industry, and is also sought after by HiFi people. In hivi 2.1 speaker products, it must be T120 to talk about "looks". At that time, it seemed that the triangular section panel design was the focus of attention unconsciously.

Hivi T120

　　　 Hivi T120 speaker was priced at more than 900 yuan when it was listed at that time, and the overall workmanship and sound quality of the speaker were unquestionable, which was well received by consumers. The innovative triangular panel design with a piano paint box makes people have to admire hivi’s strength in speaker design and production. In the follow-up products, we can still see similar designs, such as hivi’s T200 series.

　　　 It is understood that the total output power of hivi T120 speakers can reach 120W, which is very rare in the current 2.1 speakers. Its materials are unambiguous, and four LM 1875 integrated power amplifiers guarantee its excellent sound quality. In terms of units, hivi T120 adopts F6BN bass unit and M3N full-frequency unit, and the overall performance is absolutely shocking. It can be said that the launch of this T120 speaker occupied an absolute dominant position at that time, and many people are still using it.

● hivi M20W

　　　 Appearance innovation: ★★★★☆.
　　　 Word of mouth evaluation: ★★★★★
　　　 Comprehensive evaluation: ★★★★★

　　　 We have to admire hivi’s strength in product design. At that time, this M20W conquered many users with the shape of "small waist drum". Its successor, M20W(08) version, was modified in the line control and bass unit, and was immediately welcomed by many users after its launch, becoming one of the best-selling 2.1 multimedia speakers at that time.

Hivi M20W

Hivi M20W(08)

　　　 The appearance of the M-20W is still the classical and luxurious style that hivi insists on. It is made of bordeaux logs with elegant black piano paint on the top and a black front panel with hivi LOGO. The unique shape of the box makes it look like three semicircular chocolate cakes, which is very attractive. M-20W’s two satellite speakers use hivi’s 3-inch full-band antimagnetic speaker unit, which has quite good sound effect, clean and clear high frequency, and soft voice without losing density. The subwoofer is a professional 6-inch long-stroke high-power speaker unit in hivi, and its low-frequency performance is strong and thick.

● Rambler M3

　　　 Appearance innovation: ★★★★★☆.
　　　 Word of mouth evaluation: ★★★ ☆.
　　　 Comprehensive evaluation: ★★★★★

　　　 Just finished the "small waist drum" in front of hivi, let’s take a look at the M3 of Rambler. It can be said that it is a breakthrough and innovative design with the "barrel" type, and it is known as the "small steel gun". It quickly became popular with its novel and unique reality, but the most controversial thing at that time was its sound quality performance.

Rambler M3

Rambler M3 Plus

　　　 Rambler M3 adopts aluminum metal tube subwoofer and is equipped with high-power aluminum voice coil, which can effectively prevent resonance. It has built-in OLC power amplifier, which can produce strong bass effect. The high-pitched unit of the satellite box adopts a special aluminum diaphragm and a 1.5-inch paper basin, and all units are made of high-performance NdFeB magnetic steel, which can effectively reduce distortion. This rambler M3 is still selling well, and its follow-up product M3 Plus also landed in Zhongguancun not long ago, and the recruits and veterans fought together on the battlefield.

● Mai Bo A-6351

　　　 Appearance innovation: ★★★★★☆.
　　　 Word of mouth evaluation: ★★★ ☆.
　　　 Comprehensive evaluation: ★★★★★

　　　 Mai Bo’s A-6351 speaker can be said to have stood the test since it went on the market. It has persisted under the pressure of people’s evaluation such as "imitation" and "cloning", which proves its success. At present, we can still buy this speaker at a price less than that of 500 yuan, which can really be called "being old and strong".

Mai Bo A-6351

　　　 This speaker adopts 2.1+1 structure, all of which are transparent except the independent power amplifier, and the viewing degree is extremely high. The subwoofer uses a 5.25-inch subwoofer. The transparent shell is like a cover, with an upward inverter tube in the middle and four transparent legs at the bottom. The bass unit is designed to boost the ground, and the saturation and intensity of low frequency are not bad, and the performance is vigorous and strong. The satellite box uses a 2.5-inch medium-high frequency speaker unit, and the overall output power of the speaker is 44W.

● Innovative I-Trigger-3600

　　　 Appearance innovation: ★★★★★☆.
　　　 Word of mouth evaluation: ★★★ ☆.
　　　 Comprehensive evaluation: ★★★★★

　　　 Speaking of the innovative I-Trigger-3600 speaker, we have to mention its satellite box design. Although the three units of the satellite box are not so novel today, it really left a deep impression on consumers at that time.

Innovation I-trigger-3600

Innovation I-trigger-5600

　　　　Then innovation seized this selling point and launched a 5.1-channel speaker with 16 units-I-Trigger-5600. The innovative I-Trigue series speakers use titanium alloy units different from traditional speakers. This unit is small in size, and the sound quality is unambiguous. In addition, the unique design of its box structure makes the small speakers also emit quite a sense of bass.

　　　 Good sound quality and outstanding modeling at that time laid the foundation for the innovation of I-Trigger-3600. Even now, it can still compete with the 2.1 multimedia speakers on the market.

Write at the end.

　　　 Well, the above are the seven 2.1 speakers with the most beautiful designs selected by the author in the domestic multimedia speaker market. Here, we can find that most speaker manufacturers have launched follow-up products due to the success of their products. Although some have withdrawn from the historical stage, some can still be seen in the market today. Anyway, their glory is worth remembering forever. <

　　With the coming of summer, drinks to cool down and relieve summer heat have once again become people’s first choice. Natural coconut water is the "flow code" in the beverage industry in recent years. Not only do it often sell out of stock, but coffee, milk tea and other drinks made with coconut water often occupy the list of young people’s must-order. However, recently, some netizens discussed it hotly, because they bought coconuts that were opened in advance and drank coconut water inside, which caused discomfort. As a result, topics such as "Can you drink coconut water" and "Who is not suitable for drinking coconut water" have boarded the hot search.

　　Today, let’s take a look at the safety of coconut water, how to drink it is the healthiest, and who is the most suitable?

　　Drinking coconut water leads to vomiting, diarrhea and high fever?

　　The so-called coconut water is the clear liquid poured out from the coconut after it is cut open, which has a very light sweet taste and a unique natural flavor. Coconut water contains no fat, and the fat is all in the white coconut meat.

　　The reason why coconut water was on the hot search this time was because it brought some trouble. Netizens said that they bought a coconut with a pre-opened mouth and drank a few mouthfuls of coconut water, only to find that the coconut water was a little turbid. Then he felt dizzy and dizzy, and then he felt sick and vomited. After getting better, I didn’t go to the hospital for treatment, but I had a high fever the next day.

　　In fact, this high probability is caused by pathogenic bacteria or bacterial toxins in coconut water.

　　Originally, the coconut shell was tightly sealed to protect the coconut meat and coconut water inside and avoid the entry of external microorganisms. However, after opening, the coconut loses its sealability and will come into contact with the bacteria in the air and the bacteria on the opening tool.

　　Why is coconut after opening suitable for rapid propagation of microorganisms and bacteria?

　　Coconut water contains sugar, vitamins and minerals, which is suitable for rapid propagation of microorganisms. At the same time, coconut water, a "small fresh" fruit juice, has low acidity, and sugar and nutrients are directly dissolved in water instead of hidden in fruit cells, so its resistance to bacterial proliferation is too weak. It is weaker than orange juice, apple juice, tomato juice and other juices with certain acidity and polyphenols, so it is especially necessary to be careful.

　　If coconuts are stored at room temperature for a long time after opening, bacteria will multiply in large numbers, which may lead to bacterial food poisoning. Netizens found that the coconut water, which should have been clear, was a little turbid, which was the visual result caused by bacterial reproduction. This is exactly the same reason that egg soup, rice soup and noodle soup will go bad at room temperature.

　　Bacterial food poisoning may cause nausea and vomiting, abdominal pain and diarrhea, physical weakness, dizziness and headache, and even chills and fever.

　　Because the body is weak after food poisoning, other harmful microorganisms may take advantage of it, and there may be inflammation of the gastrointestinal tract and gums, or, as netizens have said, tonsils are in trouble again.

　　Deteriorated coconut water will produce mycotoxins?

　　Some people on the Internet say that the spoiled coconut water may produce Pseudomonas cocoanum, which will produce highly toxic mycotoxins. Because this case did not do microbial culture of coconut water samples, it is impossible to judge what kind of pathogenic bacteria or bacterial toxins caused the poisoning only by the symptoms.

　　It can only be said that coconut water contains carbohydrates. In an unsafe temperature environment, it can breed a variety of pathogenic bacteria and may also produce a variety of toxins, which cannot be prevented.

　　In a word, coconuts opened in advance have food safety risks. Consumers had better buy the whole coconut directly, and it is safer to ask the clerk or stall owner to open it at that time after buying it. It should be refrigerated immediately after opening, even if it is refrigerated, it is best to eat it on the same day. Eating coconut meat is the same.

　　Why can packaged coconut water be stored at room temperature?

　　100% coconut aquatic products on the market are sterilized and packaged. The bacteria inside have been killed, and the packaging outside is sealed, so microorganisms can’t get in, so it can be safely stored at room temperature for a long time before it is opened.

　　However, once opened, bacteria can enter, which is no longer safe and must be drunk as soon as possible.

　　What should I do if I don’t finish the coconut water in a big package at one time?

　　What if the package of coconut water is too big to drink at one time? Then pour out a part of it and drink it first. The rest of the box should be covered immediately and put back in the refrigerator for refrigeration. Never drink with your mouth to the bottle mouth, which will cause serious bacterial pollution. Even if it is refrigerated, it can’t last long. It is recommended to drink it all within 24 hours.

　　Not only coconut water, but also other liquid foods, such as milk, juice and drinks, need to be refrigerated in time after opening. How long it can be stored in the refrigerator depends on the product characteristics and sterilization process.

　　Generally speaking, products with particularly high acidity have slow microbial proliferation, such as lemon juice, cola, orange juice, etc., and they may not be spoiled or moldy even if they are refrigerated for 48 hours.

　　Those drinks with low acidity should not be refrigerated for more than 24 hours in most cases.

　　Who is suitable for drinking coconut water?

　　Coconut water is not rich in various vitamins, but it is particularly rich in potassium, and the potassium content per 100 grams can be as high as more than 200 mg, while the sodium content is relatively low, with a small amount of calcium and magnesium. At the same time, the sugar content is still relatively low, only 3% to 6%, which is in line with the standard of low-sugar drinks (the sugar content in 100 ml is less than 5 g).

　　Because the osmotic pressure is not high and the sugar content is low, coconut water is a good hydrating drink. For northerners, compared with buying coconuts directly, it is more cost-effective to buy a large box of coconut water at a discount and drink it with the whole family.

　　Because of its high potassium content, low sugar content and low calories, coconut water is more suitable for hyperuricemia and hypertension patients than other fruit juices. Coconut water is also a good thing for people who eat too much salt, or too much meat, lack of fruits and vegetables, and imbalance of potassium and sodium.

　　If you add a little salt and some water, coconut water can also be used as a sports drink. If you drink it directly, because potassium is high and sodium is low, it is not enough to make up for the loss of sodium after sweating a lot.

　　However, people with kidney disease who need to limit potassium can’t drink a lot of coconut water.

　　Coconut water does not have the aroma of coconut meat, but the aroma is in fat. Coconut meat is emulsified and mixed with coconut water, or without coconut water, white water is added directly, and some sugar and emulsifier are added, which is the daily coconut milk.

　　There is no doubt that all milky drinks contain fat. This is true for milk, soy milk, peanut milk, walnut milk, and coconut milk. Milky white is the optical effect after fat emulsification. Therefore, milk-white coconut milk drinks, or coconut milk products used to mix desserts and drinks, have much higher calories than coconut water, and saturated fat accounts for about half of its fat. The aroma and taste are great, but the nutritional value of protein and vitamins is much lower than that of milk and soybean milk.

　　Text/Fan Zhihong (director of China Nutrition Society, chief expert of science communication hired by China Association for Science and Technology)

The people’s governments of all prefectures and cities, the Administrative Committee of Central Yunnan Industrial New District, and the provincial committees, offices, departments and bureaus:

In order to implement "Several Opinions of the State Council on Promoting Information Consumption and Expanding Domestic Demand" (Guo Fa [2013] No.32), take accelerating the sustained growth of information consumption as an important starting point for our province to change its mode, adjust its structure and promote new economic growth points, and promote consumption upgrading, industrial transformation and improvement of people’s livelihood, we hereby put forward the following implementation opinions:

I. Significance

(1) Promoting information consumption is conducive to cultivating new economic growth points. With the continuous acceleration of information technology innovation, information consumption has gradually become an important growth force in the domestic consumer market, showing a strong penetration and driving role. Information consumption not only promotes the expansion of total consumption, but also drives the adjustment and upgrading of consumption structure, which provides sustained endogenous power for economic growth, accelerates and promotes the innovation of business models in other industries, and forms new economic growth points, which is conducive to improving the quality of economic development and realizing sustained and rapid economic development.

(2) Promoting information consumption is conducive to promoting industrial optimization and upgrading. Promoting information consumption based on information technology can promote the rapid development of emerging formats including cloud computing, big data, Internet of Things, e-commerce, modern logistics, smart cities, smart transportation and smart tourism, and at the same time drive the rapid transformation of the service industry oriented to production, life, circulation and management, thus providing a new way for the optimization and upgrading of industrial structure.

Second, the main objectives

(3) The scale of information consumption has increased significantly. By the end of 2017, the scale of information consumption in our province exceeded 70 billion yuan, with an average annual growth rate of more than 15%, driving the new output of related industries to exceed 20 billion yuan. Consumption based on information platforms such as e-commerce and cloud computing has grown rapidly, and the transaction volume of e-commerce has exceeded 100 billion yuan.

(4) Information infrastructure has improved significantly. By the end of 2017, the next-generation Internet will be basically built, fully supporting Internet Protocol Version 6(IPv6), with a provincial bandwidth of more than 3.5T, and the average access bandwidth of urban households will basically exceed 20 megabits (Mbps), the average access bandwidth of rural households will exceed 4Mbps, and the broadband ratio of administrative villages will reach 100%. The coverage and quality of the third-generation mobile communication (3G) network have been improved, with the 3G coverage rate reaching 100% in towns and cities and hot spots, and 75% in third-class and above roads. Wireless local area network (WLAN) basically realizes the coverage of data hotspots in public areas. The fourth generation mobile communication (4G) network has achieved full commercial deployment and operation. The next generation broadcast television network (NGB) will be further improved, and the digitalization and two-way transformation of cable TV will be basically completed. Form a pattern of integration, intercommunication and interactive development of broadband communication network, digital TV network and next generation Internet.

(V) The healthy development of the information consumption market. Information products and services oriented to the economy and society are more abundant, and the driving modes of manufacturing and innovation are more diversified. The production, sales and service systems of information consumer products have been basically established, and information products, enterprises and industries have begun to take shape. The cloud platform services intelligent terminal manufacturing, business model innovation and new service model cultivation have achieved results, and the emerging information service industry has basically taken shape. The construction of e-government services, people’s livelihood services, industrial services, commercial services and social services supported by cloud platform services has been basically completed, and breakthroughs have been made in the openness, openness, development and utilization of social information resources. The competition order in the information consumption market is standardized and transparent, the consumption environment is safe and credible, residents’ information consumption choices are more abundant, and their consumption willingness is further enhanced. The application of enterprise informatization has been deepened, the demand for public service information has been effectively expanded, and the demand for various information consumption has been further released.

III. Main tasks

(6) Accelerate the construction of "Broadband Yunnan"

Improve the construction of network infrastructure. Implement the flattening transformation of backbone network and metropolitan area network, and promote the optimization and upgrading of metropolitan area transmission network. Implement the "fttp" project, realize optical fiber to the building and fttp to the village, and expand the rural broadband coverage.

Promote the development of mobile communication as a whole. Promote the coverage of wireless local area networks in hot spots and public places, accelerate the pace of construction and commercialization of 4G networks, and improve emergency communication capabilities and broadband access capabilities in remote areas.

Accelerate the construction of the next generation radio and television network. Accelerate the transformation of the backbone transmission network and IP metropolitan area network of radio and television in the whole province and the construction of centralized broadcast control center of radio and television, complete the digitalization and two-way transformation of radio and television users and realize 50Mbps bandwidth access for urban users and 10Mbps bandwidth access for rural users.

Comprehensively promote the integration of the three networks. Accelerate the two-way access and opening of telecommunications and broadcasting services, promote the establishment of a new model of win-win cooperation, and further improve the ability and level of centralized broadcast control and supervision. The integration of TV, telephone and Internet services was promoted.

(7) Accelerate the cultivation of cloud computing and big data industries.

Rational planning and layout of cloud computing industry. Accelerate the construction of cloud computing industrial parks in areas with abundant hydropower resources and suitable geological and climatic conditions in the province. Create the core area of cloud computing industry in the economic circle of central Yunnan, and build a number of infrastructure supporting the province’s public cloud platform and big data services for regional, industry and field applications to form industrial agglomeration. Focusing on supporting the core area, we will build a number of specialized parks to promote the integrated development of industries such as cloud computing, big data, Internet of Things and mobile Internet.

Promote the development of cloud computing and big data industry. Promote the application platform of big data service based on public cloud, and form large-scale big data storage, analysis, application and processing service capabilities. Promote the government, enterprises, industries, scientific research institutions and social organizations to actively collect and open data, and encourage research institutions and consulting services to develop in the direction of big data application services such as data deep processing, analysis and prediction, and data sharing. Introduce a number of cloud platform operation service enterprises, support a large number of cloud platform content service enterprises, and vigorously cultivate mobile Internet development and application industries.

(8) Improve the supply level of information products.

Accelerate the construction of cultural digital content. Focus on national culture, cultural heritage, folk crafts, national performing arts, cultural relics and tourism culture, and accelerate the development of digital products. Relying on the cultural information resource sharing project, we will speed up the construction of digital cultural platforms such as digital libraries, digital reading rooms and digital farmer’s bookstores. Build a trading platform for online cultural and artistic communication, and support enterprises to produce information content such as animation, online games, digital audio and video, and online artworks. Promote the construction of digital publishing industrial park of Yunnan ethnic culture and accelerate the transformation and upgrading of traditional publishing industry in our province to digital publishing.

Promote the construction of new media platforms and content. Accelerate the integration of newspapers, magazines, online media content and platforms, innovate service models and methods, and promote the construction of regional digital media content databases and cloud service platforms in the province. Support the construction of multilingual and regional Internet audio and video communication platforms, and explore the construction of a new network media communication system in our province.

Accelerate the development of geographic information resources. Construction of regional remote sensing information data ground receiving and processing center, the establishment of a unified remote sensing acquisition, processing and distribution system in the province. Improve the ability of obtaining and processing high-resolution satellite image data covering the whole province, and establish a 1:10000 three-dimensional digital map database, a satellite remote sensing image database and an extra-high resolution image database of key cities and key tourist scenic spots in the whole province. Establish the province’s geographic information public service platform, form a new business model, and improve the comprehensive utilization level of geographic information resources.

Encourage the innovation and development of intelligent terminal products. Actively support enterprises in this province in the research and development, production and manufacturing of smart phones, smart TVs, tablet computers, smart set-top boxes, car navigation, digital home terminals, smart wearable devices and other smart terminals and cloud products. Encourage radio and television, telecom operators and manufacturing enterprises to jointly carry out R&D and production in Yunnan through cooperation and joint ventures.

Accelerate the development and introduction of language translation technology. Support the construction of machine translation technology centers and minority language software technology centers for South and Southeast Asian countries. Accelerate the construction of basic multilingual corpus, call center and translation service cloud platform. Support international cooperation and speed up the research and development and introduction of computer word and voice processing technology. Support the research and development of text input and processing software, machine-aided translation software and voice translation software, and support the exploration of language translation service platform construction and business service model innovation based on the Internet.

(9) Enhance information service capabilities.

Accelerate the action plan of "Caiyun Project". Promote the "cloud+end" service and application model based on the cloud platform, and actively promote cloud computing applications and services in the fields of urban comprehensive management, e-commerce, industrial manufacturing, transportation and logistics, social security, education and technology, cultural media, tourism and leisure, medical care, food and drug safety, etc. Accelerate the application and demonstration of big data in social management, people’s livelihood services, life and entertainment, R&D and design, manufacturing and marketing.

Improve the application level of the Internet of Things. Facing smart cities, smart transportation, smart logistics, smart tourism, smart industry, plateau agriculture, telemedicine and other key areas, market-oriented, enterprise-oriented, actively carry out demonstration of the application of the Internet of Things in professional services and value-added services, technology integration, etc., innovate service models and business models, pay attention to resource integration and information sharing, and effectively promote the development of the animal networking industry.

Strengthen the capacity building of regional information collection centers. Integrate government affairs and public information resources, and improve the information resources development ability of providing socialized collaborative services for South and Southeast Asian countries. Support the fields and departments of commerce and trade, ports, customs, investment promotion, tourism, culture, education, science and technology, transportation, human resources and social security, radio and television, surveying and mapping and other countries in South Asia and Southeast Asia to carry out information exchange, information resources development, and the construction and application of shared service platforms. Accelerate the construction of regional information collection centers and promote the application of information services, networks, platforms and systems in the region.

Accelerate the development of mobile Internet application services. Implement the demonstration and promotion of new technologies, applications and models of mobile Internet. Focus on promoting application innovation and business innovation in the fields of mobile government affairs, mobile education, mobile finance, mobile socialization, mobile games, mobile portals, mobile audio and video, location services and smart homes. Integrate government, industry and social public resources, establish an open and shared mobile Internet public service support system, support the development of mobile Internet applications, collaborative innovation platforms and the construction of mobile Internet application software stores (APP stores), vigorously cultivate a number of innovative and growing mobile Internet SMEs, and encourage operators to promote local applications by means of terminal pre-installation. Support the establishment of Industry-University-Research Capital Alliance Association for Mobile Internet.

Accelerate the construction of Beidou location information service platform. Accelerate the construction of Beidou international and provincial application demonstration projects, and improve the Beidou navigation location service platform, ground-based enhancement network, sky map service platform, Beidou industrial base and other infrastructure. Promote the integrated development of Beidou navigation and mobile communication, geographic information, satellite remote sensing and mobile Internet, support the research and development of location information service products and market expansion, and focus on the application in key areas such as smart city, smart land, smart logistics, geological disaster monitoring and emergency response, large-scale facility monitoring and public information management, so as to promote and improve the research and development, promotion and application of Beidou terminal products. Integrate the existing information infrastructure, and form a typical application demonstration and promotion of Beidou in public security, border defense, transportation, logistics and tourism services around the three major fields. Support Beidou navigation international cooperation and application services.

Improve the level of transportation logistics information service. Accelerate the improvement of intelligent warehousing, logistics and distribution infrastructure planning, build intelligent logistics infrastructure, and develop the fourth-party logistics service model. With the goal of improving public travel efficiency and service level, we will effectively gather and integrate comprehensive traffic information resources, build a smart traffic travel service platform, and provide comprehensive and diversified comprehensive traffic information services to the public.

Accelerate the development of e-commerce. Encourage our province to build an industry e-commerce platform in industries with advantages and characteristics, and focus on developing e-commerce of agricultural products with plateau characteristics and tourism e-commerce. Support large enterprises to develop e-commerce platforms for bulk commodities, and promote the common development of online markets and physical markets. Support the construction of logistics express distribution points in rural areas, communities and schools, expand the application of mobile e-commerce, and actively cultivate e-commerce in urban communities and rural areas. Encourage the construction of trading and customs clearance service platforms in cross-border electronic commerce, and promote the coordinated development of information services, trading services and logistics, payment, credit, financing, insurance, testing, certification and international express delivery services.

Promote the development of producer services based on information technology. Guide and encourage information technology enterprises to break through key technologies and promote the coordinated development of producer services and advanced manufacturing industries. Encourage large enterprises or enterprise groups to build a highly integrated and collaborative industry (enterprise) public service platform with the industrial chain as the core.

Construction of digital cultural media industrial park. Introduce a number of well-known audio and video production enterprises, and establish digital content resource libraries such as movies, music, variety shows and education. Establish an Internet program distribution and service center to provide Internet audio-visual program services to southwest China and countries in South Asia and Southeast Asia, and support digital content processing and services of audio-visual programs to countries in South Asia and Southeast Asia. Cooperate with the national digital publishing base to build a public service platform for digital copyright trading, take digital content industry as the core, digital publishing and digital printing as the guide, and take copyright trading as the means to build a comprehensive digital publishing industry chain.

Accelerate the construction of mobile Internet industrial base. Support all localities to build a number of mobile Internet industrial bases, entrepreneurial bases and training bases relying on existing parks, increase the construction of supporting infrastructure, industrial environment and entrepreneurial conditions in the bases, and introduce corresponding measures to attract Internet enterprises to gather and develop.

Implement the "100 Million Action Plan" for mobile Internet. We will carry out the Internet "100 Growing Enterprises Cultivation Plan", "1,000 Youth Entrepreneurship Support Plan" and "10,000 Mobile Internet Developers Training Plan". Within three years, we will select 100 IT enterprises with a certain foundation in the whole province, and strive to upgrade and cultivate a number of growth-oriented mobile Internet service enterprises with the mode of combining enterprise initiative, government promotion and policy assistance. Help 1,000 young people to start mobile Internet businesses through centralized training, tutor counseling and policy services. Provide basic training of mobile Internet development technology for 10,000 information technology students and software development enthusiasts, stimulate the enthusiasm of young people and students for mobile Internet entrepreneurship, and reserve mobile Internet talents.

(ten) to improve the level of public service information.

Promote the sharing and development and utilization of public information resources. Establish the catalogue of public information resources and government information resources in our province, strengthen the construction of public information resources and government information resources, and implement the plan of opening and guiding the development of government information and public information resources. Guide the establishment of public information resources trading service platform, explore the establishment of information sharing, exchange, purchase service mechanism and business model.

Improve the level of information service in the field of people’s livelihood. Implement the "information benefiting the people" project to improve the level of public information services. Accelerate the construction of educational information infrastructure and public service platform for educational resources, and carry out the construction of online classroom resource database for famous schools and famous teachers. Accelerate the construction of regional health information platforms in provinces, prefectures, cities and some populous counties, and promote the sharing of quality medical resources. Popularize the application of resident health cards, electronic health records and electronic medical records, and promote telemedicine and health management, medical consultation and appointment diagnosis and treatment services. Accelerate the informationization to support the construction of the old-age service system, carry out smart community pilot projects, and promote people’s livelihood collaborative services such as marriage, old-age care, community, social organizations, social assistance, housekeeping, medical care institutions, and funeral. Establish a public employment information service platform and speed up the networking of employment information with the whole country. Accelerate the construction of social security public service system, promote the construction of social security "one card", issue social security cards loaded with financial functions, and improve the construction of payment outlets for benefiting farmers. Relying on "digital villages", we will strengthen the integration of agricultural information resources and improve the rural comprehensive information service system.

Promote the construction of smart cities. Accelerate the construction of smart cities, formulate the top-level planning of smart cities, carry out provincial-level pilot demonstrations of smart cities in qualified cities, promote the construction of cloud service platforms for smart cities, and encourage and guide various market entities to participate in the construction of smart cities.

(eleven) improve the information consumption environment.

Building a safe and credible information consumption environment. Strengthen the protection of personal information and promote online trust services such as identity authentication, website authentication and electronic signature. Carry out the collection of personal and legal person credit information according to law, promote the establishment and improvement of government information resource database, public information resource database, financial credit information base database, and gradually establish a basic social credit database to support the construction of social credit system.

Improve the level of financial services. Supported by the national modern payment system, we will support commercial banks and payment institutions to provide safe, standardized, convenient and efficient payment services such as inter-bank payment, Internet payment and mobile payment, and improve the Internet payment system. Promote the multi-purpose of financial integrated circuit cards (IC cards) in the field of public services, and promote the formation of financial IC cards in the fields of transportation, tourism, social security, cross-border trade and so on. Support the exploration and innovation of new business and new model of Internet finance.

Improve the ability of information security. Support the establishment of a third-party security assessment and monitoring mechanism. Implement information security level protection, strengthen the detection and certification of information products and services, and strengthen network and information security supervision.

Carry out statistical monitoring and pilot demonstration of information consumption. Build a statistical monitoring platform for information consumption, ensure the availability, credibility and timeliness of statistical data, strengthen operational analysis, release relevant information to the society in real time, and reasonably guide consumption expectations. Support the construction of new information consumption demonstration projects and encourage governments at all levels to study and formulate preferential policies to promote information consumption according to local conditions.

Standardize the market order of information consumption. Strengthen the supervision of information services, online transactions, products and service quality according to law, investigate and deal with monopolistic behaviors and unfair competition behaviors in information services and online transactions, and investigate and deal with illegal and criminal acts such as infringement of intellectual property rights, manufacturing and selling fake and shoddy goods, online fraud and pyramid schemes using information services and online transactions. Further broaden and improve the channels for safeguarding rights of information consumption and strengthen social supervision.

Strengthen the training and introduction of talents. Support and encourage institutions of higher learning and vocational and technical colleges to adjust the course direction and set up professional and technical courses to adapt to the development of modern information technology. Pay attention to the role of enterprises and institutions, rely on major scientific research, major projects, industrial research projects and other projects to carry out personnel training, and gather and train talents in practice. Strengthen the introduction of innovative talents in key areas, bring the required talents into our province’s high-level talent introduction plan, and vigorously attract overseas and foreign high-level talents to start businesses in Yunnan.

Fourth, safeguard measures

(12) Strengthen organizational leadership. Governments at all levels should strengthen the overall planning, guidance and coordination of promoting information consumption, solve major problems in the promotion, and supervise and inspect the implementation of all work. Where the approval of key projects, land acquisition and demolition, land, environmental assessment, financing and other matters are involved, the lead unit must implement specific tasks and responsibilities to people to ensure that all tasks are effective. It is necessary to incorporate promoting information consumption into the important work of the government, strengthen organizational leadership, study and formulate policies and measures to promote information consumption according to local conditions, and promote the healthy and rapid development of local information consumption.

(13) Improve the policy system. We will speed up the formulation of measures for the sharing and management of government information resources and public information resources, and relevant policies for the socialized development and utilization of information resources, and establish a mechanism for data collection and formation and an open sharing mechanism for information resources. Incorporate information and communication infrastructure into urban and rural construction and land use planning, and implement it in administrative examination and approval, land acquisition and demolition, pipeline construction and other links. Effectively implement the relevant standards and specifications for the engineering design, construction and acceptance of communication pipelines, communication facilities and cable radio and television information networks in residential quarters and commercial and residential buildings, and formulate relevant management implementation measures.

(14) Innovating institutional mechanisms. Establish a coordination mechanism to promote the integration of the three networks, accelerate the two-way entry of telecommunications and radio and television services and the co-construction and sharing of communication infrastructure. Gradually open broadband access network services, encourage private capital to participate in construction and business operation, ensure enterprises to achieve equal access, users to achieve independent choice, and promote the formation of a market structure in which multiple entities compete with each other, complement each other’s advantages and develop together. Formulate policies to encourage warehousing, land for logistics construction, and management of delivery vehicles to support the development of logistics enterprises.

(15) Increase fiscal and taxation support. Make full use of special funds to include information consumption in the key support catalogue in the fields of technology research and development, scientific and technological innovation, manufacturing and enterprise cultivation. Study and improve the use policy of radio frequency occupation fee, and support the construction of economic and social information. We will improve the compensation mechanism for universal telecommunications services and support broadband development in remote rural areas and border ethnic minority areas. Further implement some policies to encourage the development of software and integrated circuit industries, and increase the implementation of tax policies for small and micro enterprises.

(16) Improve the financing environment. Support qualified small and medium-sized enterprises on the Internet to list on the "New Third Board". Guide angel funds, venture capital funds, venture capital funds and private equity investment funds to invest in small and medium-sized enterprises in information services. Support qualified enterprises to issue corporate bonds or collective bonds to raise funds for smart city construction. Encourage financial institutions to innovate financial products and services according to the characteristics of Internet enterprises, carry out intellectual property pledge financing, and explore the establishment of a loan risk compensation mechanism for SMEs. Support insurance institutions to carry out product innovation in financing, underwriting, claims settlement, disaster prevention and loss prevention, product development, etc., and provide insurance services for small and medium-sized enterprises on the Internet. Encourage private capital to initiate the establishment of professional financial institutions to serve small and medium-sized enterprises on the Internet. Encourage financing guarantee institutions to provide credit enhancement services for small and medium-sized enterprises on the Internet.

(seventeen) to strengthen publicity and marketing. Actively carry out publicity work to promote information consumption, and vigorously publicize emerging service models, new information products and typical application cases of information consumption. Pay attention to the promotion and guidance of advanced socialist culture, cultivate new information consumption demand, actively guide the public’s healthy and upward information consumption habits, and strive to create a good social environment and public opinion environment for information consumption.

Attachment: Division of labor and time schedule of key tasks for promoting information consumption in Yunnan Province (omitted)

Yunnan Provincial People’s Government

June 17, 2014

The long-delayed COVID-19 epidemic has once again highlighted the indispensable and extensive influence of digital technology on a global scale. The rise of new technologies such as artificial intelligence, Internet of Things, 3D printing, augmented reality and virtual reality, and quantum computing is subverting the traditional economic and social operation mode and shaping new development opportunities. How a country responds to the various changes brought about by the technological revolution and establishes corresponding competitiveness around digital technology will not only determine its future economic growth, but also affect its geopolitical status. In this context, countries all over the world have put the digital transformation in the fields of economy, governance and life into the important agenda of the government, and increased resource input and policy support to improve their digital competitiveness.

Not long ago, the European Center for Digital Competitiveness of the European Advanced Business School (ESCP) released the Report on the Promotion of Global Digital Competitiveness in 2021 (Digital Riser Report 2021）。 The research report comprehensively uses the relevant data from the World Economic Forum, the World Bank and the International Telecommunication Union to evaluate and rank the current digital competitiveness of 137 countries around the world, and extracts the best practices of countries with rapidly rising digital competitiveness, so as to provide decision-making and action guidance for other countries. The relevant research conclusions have certain reference significance for countries around the world to understand the advantages and disadvantages of their digital transformation from a macro perspective and to calibrate the strategic direction of enhancing digital competitiveness.

The research report simplifies the definition of a country’s "digital competitiveness" as 10 equal weight factors in two categories: "digital ecosystem" and "digital thinking mode", and divides all countries into nine groups, namely, G7, G20 and Asia-Pacific, Eurasia, Europe and North America, Latin America and the Caribbean, Middle East and North Africa, South Asia and sub-Saharan Africa defined by the World Economic Forum. On this basis, combined with the data of the three years from 2019 to 2021, it is scored and ranked. Among them, the elements belonging to the "digital ecosystem" include the difficulty of obtaining venture capital, the cost of starting a business, the time required for starting a business, the convenience of hiring international talents, and the digital skills of university graduates; The "digital thinking mode" includes the digital skills of the working population, the attitude towards entrepreneurial risks, the diversity of labor force, the scale of mobile broadband users, and the acceptance of subversive business development ideas by enterprises. The scoring results intuitively reflect the changes of digital competitiveness of countries in terms of sub-items and overall, while limiting the ranking to nine groups is to ensure that the comparison baseline is relatively fair and the results are comparable. By combing the relevant evaluation results, the report puts forward three main findings:

Nowadays, the global digital competitiveness is changing.

The research report shows that while the digital competitiveness of some countries and regions is rapidly improving, some leading digital countries in public perception are gradually losing their advantages. Taking China and the United States as two digital superpowers, for example, during 2019-2021, China’s digital competitiveness improved obviously (+211), while the United States showed a decline (-72). Moreover, whether in the G7 or G20 group, the ranking of the increase in digital competitiveness of the United States is in a relatively backward position. The analysis believes that the decline of digital competitiveness in the United States is mainly driven by the dimension of digital ecosystem, including a series of adverse effects such as increasing immigration and visa barriers, which makes it more difficult to attract international digital and information professionals. The promotion of China’s competitiveness is mainly reflected in its strong advantages in the dimension of digital thinking mode, including the proposal and deployment of a series of national overall strategic plans, and taking scientific and technological innovation and entrepreneurship as important measures to achieve high-quality development.

In addition to the United States, Britain (-85), Sweden (-92) and other developed countries in digital technology also failed to show a significant increase in digital competitiveness. India (-396), Germany (-176) and other big countries even experienced a sharp decline in competitiveness in both digital ecosystems and digital thinking modes. However, some countries, such as Georgia (+153), Egypt (+258), Canada (+47) and Vietnam (+339), which do not have a high digital starting point, have become the leaders in this field because they have implemented a series of fruitful digital transformation measures. To some extent, this shows that the global digital competitiveness pattern is in the process of dynamic reorganization, and new global digital technology leaders will appear in the future.

Digital competitiveness is closely related to digital transformation measures.

The research report collects the "Best Practice" of digital transformation in G7, G20 and seven regional economic groups whose digital competitiveness has increased significantly in the past three years, covering the actual progress in the fields of strategic planning, policy assistance, investment support and perfect supervision. For example, through the implementation of the "National Innovation and Skills Plan", Canada set up a strategic innovation fund for digital transformation, adding more than 70,000 jobs, driving more than 45 billion US dollars of investment, and injecting new vitality into the national economy; Vietnam pushes the "National Digital Transformation Plan in 2025", vigorously advocates the adoption of emerging digital technologies, builds a digital government, and sets a long-term goal that the digital economy will account for 30% of the national GDP by 2030; Egypt has vigorously promoted the "ICT 2030 Strategy" and the "Digital Egypt" plan, thus becoming the leader of digital transformation in the Middle East. Therefore, the report believes that the promotion of national digital competitiveness is closely related to the government’s clear long-term goal of digital transformation and leading the formulation and implementation of comprehensive planning for digital transformation.

To enhance digital competitiveness, we need to support digital innovation and entrepreneurship.

The research report found that countries with rapidly rising digital competitiveness pay great attention to attracting international talents, promoting innovation and entrepreneurship, and strengthening the education and training of digital skills. For example, Italy has established a legal framework to provide visa convenience and tax incentives for start-up companies and scientific and technological talents through the Entrepreneurship Law (ISA), thus attracting tens of thousands of start-up companies to register and operate in Italy in just three years; The Spanish government has launched a series of entrepreneurship support policies, including the Entrepreneurship Promotion Law, the establishment of a national entrepreneurship office, and the introduction of outstanding international talents. Georgia is actively implementing the "2017-2021 Strategy for the Unification of Education and Science" to promote the modernization of science, technology and innovation system.

In view of this, the research report emphasizes that each country needs to fully develop its own digital thinking mode and digital ecosystem, and pay attention to the speed and effectiveness of policy implementation in order to improve its digital competitiveness. At the same time, from the evaluation results of global digital competitiveness in 2021, under the influence of multiple factors, the speed of digital transformation varies greatly among different countries, and the global competition pattern around digital transformation also shows a rapid change trend, and there may be many possibilities in the future. Generally speaking, countries that attach importance to and vigorously promote digital transformation can basically make significant progress in a relatively short period of time. Even countries with weak digital foundation can realize the acceleration of digital transformation after taking appropriate actions and measures. Therefore, governments should attach great importance to and carefully consider the future strategic decision-making and management mode in this key field, and effectively promote digital transformation based on actual national conditions.

Family farm agriculture is a new force for high-quality development
There are nearly 600,000 family farms listed in the national list, with an operating land of 160 million mu.

Cartography: Wang Zheping

Family farms, with family members as the main labor force and family management as the basic business unit, engage in large-scale, standardized and intensive agricultural production and management, which is the main management mode of modern agriculture. Since the 18th National Congress of the Communist Party of China, all localities have actively guided and supported the development of various family farms such as agriculture, forestry, animal husbandry and fishery, and achieved solid results.

In recent years, the number of family farms in China has increased steadily, and the quality of development has improved day by day. Family farms have become the growth point of farmers’ income, the focus of industrial prosperity and the experimental field of structural reform of agricultural supply side.

"We have sold mushrooms to Japan, South Korea and Southeast Asian markets, and the income of our family farm is getting better every year." Yu Peiying, head of Kangyi Family Farm in Nanhe County, Xingtai City, Hebei Province, could not hide his excitement. This farm manages 120 mu of land and has four family laborers. It mainly produces edible fungi, walnuts and vegetables, with an annual output value of 1.1 million yuan and a net income of more than 200,000 yuan last year. The thriving family farm is becoming a new force for the high-quality development of agriculture in China.

Family farms, with family members as the main labor force and family management as the basic business unit, engage in large-scale, standardized and intensive agricultural production and management, which is the main management mode of modern agriculture. Since the 18th National Congress of the Communist Party of China, according to the deployment of the CPC Central Committee and the State Council, all localities have actively guided and supported the development of various family farms such as agriculture, forestry, animal husbandry and fishery, and achieved solid results. The reporter learned from the Ministry of Agriculture and Rural Affairs that at present, there are nearly 600,000 family farms listed in the list of agricultural and rural departments in China, with an operating land of 160 million mu. The number of family farms has increased steadily, the quality of development has been improved day by day, and the operating industries have become increasingly diversified.

Policy creation

Small farms have become the growth point of farmers’ income.

In the supply of family farm system, hundreds of millions of farmers have a new support. Good things happen one after another.

This year’s Central Document No.1 emphasizes supporting the development of primary processing of agricultural products suitable for family farms and farmers’ cooperatives. A few days ago, 11 ministries and commissions, including the Central Agricultural Office, issued "Guiding Opinions on Implementing Family Farm Cultivation Plan", and the development of family farms has gained new policy confidence.

Open the net income account of Kangyi Family Farm in 2018, and it will shine at the moment: grain income is 9,000 yuan, vegetables income is 10,000 yuan, walnuts income is 11,000 yuan, and edible fungi income is 220,000 yuan. At present, there are 41,000 family farms in Hebei province, covering 94% of administrative villages, which has effectively boosted farmers’ income. Up to now, there are 100,000 family farms in Anhui Province, ranking first in the country, which has become an important channel for farmers to increase their income.

The Guiding Opinions require that by 2020, the policy system supporting the development of family farms will be basically established, the management system will be more sound, the guidance service mechanism will be gradually improved, and the number of family farms will increase steadily. By 2022, the policy system to support the development of family farms will be further improved, and the production and operation ability and driving ability of family farms will be consolidated and improved.

Zhao Yang, director of the Policy and Reform Department of the Ministry of Agriculture and Rural Affairs, said that speeding up the cultivation of a large number of family farms with moderate scale, intensive production, advanced management and obvious benefits will continuously raise farmers’ income to a new level.

Adhere to the main body of farmers. It is to adhere to the basic position of family management in the rural basic management system, encourage farmers with long-term and stable willingness to farm to moderately expand their business scale, develop various types of family farms, and carry out various forms of cooperation and alliance.

Adhere to a moderate scale. Guide family farms to achieve the best scale benefits according to the industrial characteristics and their own management capabilities, prevent one-sided pursuit of land and other means of production from being excessively concentrated, and prevent "large households".

Adhere to market orientation. Follow the law of family farm development. Give full play to the decisive role of the market in promoting the development of family farms and strengthen the government’s guidance and support for family farms.

Demonstration creation

Small farms have become the focus of industrial prosperity

The geese are led by the head geese, and family farms are no exception.

Jianong Family Farm is located in Gaoxiang Village, Yeshan Town, Tianchang City, Anhui Province. It is one of the top ten local family farms, which makes the person in charge Chen Hongping very happy. As an "old-fashioned" farmer, Lao Chen’s family farm has read "three agricultural classics".

A classic, save money and increase efficiency. The operation scale of 345 mu of Jia Nong’s family farm can make the whole set of agricultural machinery and equipment work happily, which not only saves costs, but also provides appropriate agricultural machinery services to increase income. The new rice varieties introduced by the farm have achieved high quality and good price, and the income per mu has increased by more than 200 yuan.

Two classics, agricultural science and technology. Jia Nong’s family farm adheres to the green concept, adopts the rotation mode, selects new varieties, carries out agricultural prevention and control, and implements cultivation management techniques such as water saving and warming, which is not only environmentally friendly but also increases income.

Three classics, order agriculture. Through multi-party alliance, Jia Nong’s family farm allows itself to grow together with leading enterprises. Based on orders and contracts, family farms can not only form a close interest community with enterprises, but also drive large farmers and small farmers to participate in industrial management.

Zhao Yang said, give play to the role of typical demonstration, promote development through demonstration, summarize and popularize the demonstration models of different types of family farms, and improve the development quality of family farms.

Strengthen the establishment of demonstration family farms and carry out the establishment of demonstration counties of family farms. All localities should follow the principle of "voluntary declaration, merit-based recommendation, step-by-step audit and dynamic management", improve the working mechanism and carry out the creation of demonstration family farms. Relying on rural revitalization demonstration counties, agricultural green development pioneer areas, modern agricultural demonstration areas, etc., support the establishment of family farm demonstration counties where conditions permit, and promote the cultivation of family farms throughout the county.

Encourage all kinds of talents to set up family farms and guide family farms to develop cooperative management. Encourage local talents in rural areas, migrant workers who are willing to return to their hometowns and return to their hometowns, outstanding rural college graduates and scientific and technological personnel to set up family farms.

Huo Mi-cai, a villager in Dawopeng Village, caoshi, Qingyuan Manchu Autonomous County, Liaoning Province, is really not simple. His Mingyu family farm concentrates on rice, with an annual net income of 700,000 yuan. His "secret" lies in the fact that he can store 300-400 tons of grain in the farm’s storage by processing and increasing the value through his own production and operation and purchasing grain from small farmers!

The demonstration of family farms is in full swing all over the country. At present, Zhejiang insists on moderate scale and family management, and has launched 1204 demonstration family farms in the province. According to the system standard of cultivating family farms, 11,107 demonstration family farms have been established in Anhui Province.

Mechanism innovation

Small farms have become experimental fields for structural reform of agricultural supply side.

Where there are family farms, there are continuous deepening actions of structural reform on the supply side of agriculture. On the one hand, family farms deepen the structural reform of agricultural supply side, and the green concept runs through the whole process of agricultural production.

At first glance, the sweet potatoes in Kangyi Farm are growing happily, with green leaves and strong sweet potato vines intertwined like a giant green carpet.

The mechanism of circular agriculture is also introduced here, and a corncob is used twice, and the corncob raw material is used as a culture medium to cultivate fresh mushrooms; The waste from mushroom cultivation is used as organic fertilizer to produce a new mushroom culture medium, which ensures the organic nutrition of the culture medium and the green quality of the products, and improves the comprehensive benefits of planting.

On the other hand, family farms are refining the structural reform of agricultural supply side.

Zhejiang guides family farms to set up cooperatives, from single-handedness to group development, focusing on the reorganization of industry, market and property rights, guiding the main body to unite, and building a pagoda-like management main body system of "small farmers-family farms-cooperatives-agricultural leading enterprises". Starting with the supply of system, Hebei Province supports family farms to become better and stronger. This year, it co-ordinates more than 2 billion yuan of provincial-level financial funds related to agriculture, and develops provincial-level credit exclusive products, providing 2.17 billion yuan of guarantees for 4,317 cooperatives and family farms.

Deepening the structural reform of agricultural supply side in family farms will build a more perfect security system. The relevant person in charge of the Ministry of Agriculture and Rural Affairs said that it is necessary to protect the land management rights of family farms in accordance with the law, improve the service system for the transfer of land management rights, and encourage the orderly transfer of land management rights to family farms. Protect the rights of both parties to land circulation according to law, guide both parties to reasonably determine the rent level, stabilize the relationship between land circulation, and effectively prevent the risk of land lease for family farms.

Deepening the supply-side structural reform of family farms will strengthen the construction of more perfect infrastructure. Zhao Yang said that family farms should be encouraged to participate in the construction of grain production functional zones, important agricultural products production protection zones, characteristic agricultural products advantage zones and modern agricultural industrial parks. Support family farms to participate in the construction of high-standard farmland and promote centralized contiguous management.

Yu Peiying is beaming with joy: "Counting accounts, the family farm of four people in my family has a per capita income of more than 50,000 yuan, which I didn’t even think about before. This is good, that is good, and it is not as good as income growth. This sweetness, that sweetness, is not as sweet as a purse! " (Reporter Gao Yuncai)

　　On May 15th, at the press conference held by the State Council Press Office, the National Bureau of Statistics released the main index data of national economic operation in April. The data shows that in April, the production sector grew steadily, the market demand continued to expand, the employment situation continued to improve, consumer prices rose moderately, the supply-side structural reform was further promoted, the old and new kinetic energy was accelerated, and the quality and efficiency of economic operation were further improved.

　　Xing Zhihong, spokesperson of the National Bureau of Statistics and director of the National Economic Statistics Department, said that although some indicators declined in April, there were many positive changes in the relationship between supply and demand, quality and efficiency, and market expectations in economic operation. "Stability" was the main tone, "progress" was the key word, "good" was the general trend, and the national economy was expected to continue to maintain a stable and positive trend.

　　The main tone of "stability" has not changed.

　　The data shows that the growth rate of some economic indicators declined in April.

　　"This is mainly due to this year &lsquo; May Day &rsquo; The small holiday is ahead of schedule and the working day is reduced by one day. " Xing Zhihong said that if we compare the growth of economic indicators in April with January-February and last year, we can find that the performance of relevant indicators is not weak. Taking industry as an example, in April, the year-on-year growth rate of industrial added value above designated size was 0.2 percentage points faster than that in January and February, and 0.5 percentage points higher than that in the same period last year. Among the monthly growth rates since 2015, the growth rate of 6.5% is also at a high level.

　　"The decline in the growth rate in the month has not affected the steady development trend of the cumulative growth rate." Xing Zhihong said that the cumulative industrial growth rate from January to April was 6.7%, which was basically the same as the 6.8% in the first quarter; The cumulative growth rate of retail sales of social consumer goods was 10.2%, 0.2 percentage points faster than that in the first quarter. It can be seen that the slight decline of some economic indicators in April is not a trend change, but a small fluctuation within a reasonable range and an expected range.

　　Xing Zhihong said that from the four important indicators of economic growth, price level, employment status and balance of payments, China’s economy continued to operate steadily in a reasonable range, and the main tone of stability remained unchanged, achieving stable economic growth, stable employment, overall stable prices and relatively stable balance of payments.

　　The strength of "entering" is increasing.

　　Xing Zhihong said that in April, China’s economic operation was intensified, structural adjustment continued to advance, and the momentum of transformation and upgrading was good. The "three to one, one reduction and one supplement" was solidly promoted, and the policy effect was further revealed.

　　&mdash; &mdash; In terms of capacity reduction, steel production increased by 1.7% year-on-year in the first four months, and the growth rate dropped by 0.4 percentage points compared with the first quarter. Cement and raw coal production increased by 0.7% and 2.5% respectively. At present, the steel production capacity is 31.7 million tons, and the coal production capacity is 68.97 million tons, achieving 63.4% and 46% of the target tasks for this year respectively. In terms of destocking, the area of commercial housing for sale nationwide decreased by 7.2% at the end of April, which was 0.8 percentage points higher than that at the end of March. In terms of deleveraging, the asset-liability ratio of industrial enterprises above designated size was 56.2% in March, down 0.7 percentage points year-on-year.

　　&mdash; &mdash; In terms of cost reduction, from January to March, the cost per 100 yuan of main business income of industrial enterprises above designated size was 85.25 yuan, down 0.15 yuan year-on-year.

　　&mdash; &mdash; To make up for the shortcomings, the investment in ecological protection and environmental management increased by 50.4% in the first four months, the investment in public facilities management increased by 28.4%, and the investment in water conservancy management, transportation and warehousing and postal services increased by 16.1% and 16.7% respectively.

　　"Since the beginning of this year, the leading role of innovation has improved, new kinetic energy has continued to grow and develop, and entrepreneurial innovation has a good momentum." Xing Zhihong said that in April, there were 556,000 newly registered enterprises nationwide, a year-on-year increase of 9.2%, with an average of 18,500 newly registered enterprises every day. New formats and new models have grown rapidly, and the proportion of online goods in the retail sales of social consumer goods has reached 12.9%, up 1.8 percentage points year-on-year. Driven by the rapid development of e-commerce, the volume of express delivery business is also growing rapidly, and it is expected to increase by 31.1% from January to April.

　　"Good" conditions are increasing.

　　Xing Zhihong said that since the beginning of this year, the positive factors in China’s economic operation have been accumulating, and the steady and positive development trend is sustainable.

　　From the perspective of supply and demand, although the year-on-year increase of PPI has declined in the past two months, the improvement of supply and demand in most industries continues and the market demand continues to expand. In April, the prices of 34 of the 40 industrial sectors were higher than the same period of last year, and the increase was further expanded; Among the 596 industrial products, the output of 419 products was higher than that of the same period of last year, with an increase of 70.3%; What is even more commendable is that the production and sales rate reached 97.6%, up 0.1 percentage points year-on-year, indicating that the relationship between supply and demand in the market continued to show an improvement trend.

　　"This improvement in the relationship between supply and demand is achieved in the context of structural reform on the supply side and the transformation of old and new kinetic energy. It appears on the premise that both supply and demand structures are optimized, and new supply is born through new demand, and new supply creates new demand, not just the result of cyclical factors." Xing Zhihong said.

　　"The upward momentum of the economy and the downward pressure of the economy coexist, and some long-term accumulated structural contradictions still exist." Xing Zhihong said that at present, China is in a critical period of speed shifting, structural optimization and kinetic energy conversion, and it still needs to pay close attention to new situations and new problems in economic operation. (Economic Daily China Economic Net reporter Lin Huocan)

Destroy data and roll up actual combat "shock wave"
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—— A brigade of the 26th Army made a real explosion drill and broke through the traditional training concept.
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The moment when the armor-piercing projectile damaged the tank, our special correspondent Qiu Chengliang took a photo.

introduction

How to fight? How do soldiers practice? A brigade of the 26th Army has used 11 kinds of ammunition to conduct real explosion drills on 37 armored combat vehicles, artillery, transport vehicles and other equipment of 5 categories, and collected thousands of groups of target damage data. The brigade entered this data into the system to evaluate the strike effect, and many conclusions broke through the traditional training concept, opening a new field of vision for officers and men in actual combat training.

The first hit doesn’t mean effective damage, only hitting the key can defeat the enemy with one blow.

Three shells hit a tank with composite armor one after another. I thought the victory was in hand, but the evaluation result was unexpected: "Hit the frontal armor, no substantial damage was caused to the target, and the damage was invalid!" This conclusion made Shi Yong, a "super shooter" of a brigade of the 26th Army, very depressed.

"When I was a soldier for 14 years, I experienced hundreds of large and small exercises. As long as it was the first hit, it was rated as an effective shooting. I didn’t expect to hit a nail in front of the real guy."

In fact, Shi Yong was not the only one who hit a nail in this live-fire drill. According to the leader of the brigade, more than 10 super shooters in the whole brigade were defeated in the first round of real shooting.

The actual data questioned the traditional training concept-is it actual combat when a gun is fired and a cannon is fired? Ammunition consumption, meters, seconds, rings … Can these indicators be simply equated with fighting skills?

These two question marks not only hover on the training ground, but also weigh on the hearts of the "group of people" of the brigade party Committee. Actual combat training is not an empty slogan, it must stand the test of actual combat standards. To this end, they introduced the actual training data into actual combat training, re-examined the traditional training methods and tactics, and seven "gold medal courses" that did not meet the actual combat standards were stuck outside the training ground.

Problems on the training ground must be solved on the training ground. In the subsequent resumption, Shi Yong and other defeated shooters made "zero distance" contact with the hit tanks, and compared the collected damage data, repeatedly analyzed and found out the reasons for not forming effective damage.

"The first aiming position should be the engine compartment of the tank. If you attack with an armor-piercing projectile, even if it can’t be destroyed, it will cause damage to the crawler and lead to paralysis …" At the military democracy meeting, officers and men had a deeper understanding of the first hit.

The first enemy to fire does not mean to seize the opportunity. Only by measuring the enemy’s troops can we win every battle.

The brigade has 701 vehicles in the 3rd Battalion and 7th Company, which is the best "red flag vehicle" in the whole brigade. It has shot down 326 targets in previous exercises. However, in this drill, because the enemy fired first, they not only missed each other, but became living targets.

The leader of the brigade told the reporter that according to the battlefield data, the target tank is better than ours in terms of artillery range and armor protection. In the face of such a strong enemy, the first enemy to fire will not achieve the effect of destroying the enemy, but will be exposed prematurely, thus falling into the unfavorable situation of "the enemy can beat me and I can’t beat the enemy."

"Driving into a pit can reduce the exposed area, and you can hit and run by relying on the soil slope, and drilling into shrubs can interfere with ranging …" Li Ruijie, a tank driver, told reporters that in order to overcome the weakness of his own tank and attack the enemy as much as possible, it is necessary to not only lower the "posture" but also make good use of the surrounding topography and protect himself before attacking the enemy.

The reporter saw at the drill site that Li Ruijie’s motorcade simply circled around the other side for maneuver defense, attracting the "enemy" tanks to keep turning, while another tank of its own took this opportunity to approach quickly and quickly, aiming at the enemy’s weak points and shooting a fatal blow, staged a wonderful confrontation with the inferior to win the superior.

The central position is not equal to the key position, and only by selecting the target can we get twice the result with half the effort.

It’s better to miss than to hit right! If this matter is usually placed on any officer, it is unbelievable. But it happened firmly in the actual combat environment.

"boom! Boom! " With two loud noises, two anti-tank missiles from the second battalion of Bubu successively hit the turrets of two tanks, and at that time the flames soared. The reporter went out with the rescue team and saw that the first missile hit the center of the turret and the second hit the lower left of the turret.

Just as the officers and men cheered for the first missile, the battlefield damage data showed that the first missile only damaged the gun bolt; The second shot destroyed the vehicle-mounted radio and artillery aiming mechanism, and hit the tank ammunition bin, which was better than the first shot.

The evaluation results surprised officers and men, and the traditional training concept of winning by hitting the bull’s-eye for many years was a bit untenable. "In the past, actual combat training was unilaterally understood as playing live ammunition, blindly emphasizing playing more, playing well and playing accurately, and the research on the damage effect of hitting targets was not deep." The brigade leader said that this time, the brigade party Committee introduced the actual combat data into the actual combat training, guided the training with the training concept based on effect combat, and established the actual combat coordinate system supported by damage data.

The target damage data system is impacting the brigade’s traditional operational concept. The reporter was pleasantly surprised to see at the brigade training ground that the target target changed from the "white cloth target" in the past to a real tank, and the fixed target became a mobile target. The officers and men studied the tactics and play with reference to the damage data collected by the actual combat. Talking about these changes, Kong Chen, the squad leader of Bubu No.5 Company, was deeply touched: "The target bull’s-eye in actual combat needs combatants to find it with their brains."

Battlefield viewpoint

Learn to "fight with data"

■ Ma Shujiang

The actual combat is not real, the effect is how, the experience does not count, and the data has the right to speak. Operational data has become a key factor in the generation of combat effectiveness, and the search, analysis and processing of data will become a decisive factor in winning future wars.

Information is the eye, data is the courage. The characteristic of actual combat is precision. Accuracy, precision and fineness all come from specific data information. Only by being good at speaking with data can we accurately judge the target, select the key points and accurately release the energy.

Under the conditions of modern warfare, operational advantages are concentrated in information advantages, which are highly dependent on data advantages. Nowadays, all kinds of information equipment of our army are installed in succession. However, it is not enough to have information-based weapons and equipment. Commanders also need to be able to construct data, digest data and be good at speaking with data. In every link and element of combat, data should be used for embodiment, data expression, data proof and data decision.

Good calculation has a chance of winning. Data is indispensable to mastering the truth, scientific decision-making depends on data, and it is necessary to attach importance to data to defeat the enemy. Only by constantly strengthening data awareness and cultivating the habit of fighting with data can we make the battlefield nerves more sensitive and ensure our army to win more.

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The exterior design of the Eπ 008 is unique and full of technology. The front face adopts a family-style Xingyao air intake grille, with sharp LED headlights on both sides, showing a strong visual impact. The body lines are smooth, the overall style is tough and stylish, highlighting its unique personality and charm.

车系eπ008拥有5002*1972*1732mm的长宽高尺寸，轴距为3025mm，前轮距和后轮距均为1650mm，确保了宽敞舒适的车内空间。车侧线条流畅而动感，搭配265/45 R21规格的轮胎和时尚的轮圈设计，突显出强烈的运动气息。

eπ008的内饰设计采用了简约而不失科技感的风格，车内采用了大量高品质材料，提升了整体的豪华感。方向盘采用真皮包裹，手感出色，并且支持手动上下和前后调节，满足不同驾驶者的个性化需求。中控台上配备了一块15.6英寸的高清触控屏，集成了多媒体系统、导航、电话、空调等多种功能，并且支持语音识别控制，提高了操作的便捷性和智能化水平。车内还配备有USB和Type-C接口，方便乘客为电子设备充电。前排座椅采用了仿皮材质，支持前后调节、靠背调节、高低调节以及腰部支撑调节，提供舒适的乘坐体验。主驾驶座椅还具备加热、通风、按摩功能，并配备了头枕扬声器，提升了舒适性和娱乐体验。副驾驶座椅同样支持多种调节功能。第二排座椅支持靠背和腿托调节，提升了后排乘客的舒适度。此外，后排座椅可以按比例放倒，增加了行李空间的灵活性。

eπ008搭载了一台1.5T 147马力的高效L4发动机，最大功率达到108千瓦，最大扭矩则为210牛·米。与之匹配的是电动车单速变速箱，为车辆提供了强劲的动力输出和平顺的驾驶体验。

汽车之家车主 对 eπ008 的外观给予了高度评价，她表示：“外形很大气！前脸很帅！颜值高！开出去回头率很高！车标也简洁！” 这种设计无疑使得 eπ008 成为了路上的一道亮丽风景线。

　　In the new era, Socialism with Chinese characteristics has made great achievements, and China is increasingly showing the image of a great country with beautiful mountains and rivers. The picture shows Hulu River in Xiji County, Guyuan City, Ningxia after treatment. Xinhua News Agency reporter Wang Peng photo

　　On September 23, the first "One Belt, One Road" International Ocean City Cultural Photography Week opened in Dalian. The picture shows visitors enjoying the photographic works on display. Xinhua news agency

　　Socialism with Chinese characteristics is the theme of the whole theory and practice of the Party since the reform and opening-up, and it is the fundamental achievement that the Party and the people have made through untold hardships and paid a huge price. Since the reform and opening up, the great creation and great achievements of Socialism with Chinese characteristics’s theory and practice have not only profoundly changed China, but also profoundly influenced the world.

　　In the new era, to further strengthen the "four self-confidences" and consistently uphold and develop Socialism with Chinese characteristics, we need to profoundly grasp Socialism with Chinese characteristics’s great contribution in the history of world socialism development and human society development.

　　1. Glowing the strong vitality of scientific socialism.

　　Since the reform and opening-up, the Communist Party of China (CPC) has led the people of all ethnic groups in China to unswervingly March forward along the road of Socialism with Chinese characteristics, pushing China’s economic strength, scientific and technological strength, national defense strength and comprehensive national strength into the forefront of the world, promoting China’s international status to achieve unprecedented promotion, and making China increasingly show the image of an oriental power with clear politics, economic development, cultural prosperity, social stability, people’s unity and beautiful mountains and rivers. In just 40 years, Socialism with Chinese characteristics has made scientific socialism glow with great vitality in China with a population of more than 1.3 billion, and its significance and contribution are of course extremely significant and self-evident.

　　First, it proves that Marxism and scientific socialism will never fade. Whenever the international communist movement suffers setbacks and the world socialism falls into a low tide, there are always voices that question the truth of Marxism and scientific socialism. After the drastic changes in Eastern Europe, the world was suddenly filled with various arguments such as "failure", "bankruptcy", "failure" and "outdated" of Marxism. Over the past 40 years, Socialism with Chinese characteristics’s great achievements have not only proved the absurdity of these arguments, but also proved the great truth power and vitality of Marxism. Because, these great achievements are precisely the result of long-term efforts by the Communist Party of China (CPC) people who have always believed in the scientificity and truth of Marxism and regarded Marxism as an expert, United and led the people of all ethnic groups throughout the country, adhered to Marxism as the fundamental guiding ideology, unswervingly followed the correct path of Marxism in China, kept pace with the times and practiced the basic principles of Marxism and scientific socialism. In the new era, Socialism with Chinese characteristics has made great achievements, so we must cherish the truth value of Marxism leading the times, persevere in promoting the modernization and popularization of Marxism in China, and make Marxism shine more brilliantly.

　　Second, it has set up a dazzling great banner of scientific socialism in the world, that is, the great banner of Socialism with Chinese characteristics. Needless to say, after the drastic changes in Eastern Europe, it was doubtful whether socialism could stand in the world at that time. Regarding this question, Comrade Deng Xiaoping said that as long as socialism in China does not fall, socialism will always stand in the world. After long-term efforts, Socialism with Chinese characteristics has not fallen, but has entered a new era and become the mainstay of world socialism. This is of great significance to Marxism, scientific socialism and world socialism.

　　Third, it has greatly boosted the confidence of the people of the world in socialism. In the history of the development of world socialism, Socialism with Chinese characteristics’s great theoretical and practical creation is of great significance to shake things up and restore confidence, and it also proves how far-sighted Comrade Deng Xiaoping was when he put forward in early 1992 that "there will be more people in favor of Marxism in the world". Indeed, in the face of Socialism with Chinese characteristics’s great achievement of "unique scenery here", more and more people in the world will seriously think about the development prospects of socialism. We have reason to believe that as long as we hold high the great banner of Socialism with Chinese characteristics in the world, and as long as Socialism with Chinese characteristics makes more and more original contributions to the development of Marxism in the new era, the attraction of scientific socialism in the world will surely increase day by day, and world socialism will finally usher in a bright future.

　　2. Expanding the way for developing countries to move towards modernization.

　　Since the reform and opening up, socialism in China has been full of hope, vitality and new vitality. The fundamental reason is that our party has led the people out of a correct path. Such a road is the Socialism with Chinese characteristics Road. Practice has proved that Socialism with Chinese characteristics Road is the only way to realize socialist modernization and create a better life for the people. Socialism with Chinese characteristics Road was gradually formed by China based on its own national conditions and practice, drawing wisdom from Chinese civilization, drawing on the strengths of various schools in the East and the West, sticking to it but not being rigid, learning from it but not copying it. This road is neither "traditional" nor "foreign", nor "westernized", but "original", which is the result of our party’s hard work, pioneering and enterprising, exploring the truth and grasping the law.

　　It should be pointed out that it is not easy for us to walk out of such a correct path. The Communist Party of China (CPC) and the people of all ethnic groups in China under his leadership finally woke up after setbacks and hesitation, and finally came out successfully. As the General Secretary of the Supreme Leader said: "In the past, we copied our books and imitated others. We were confused and frustrated. We hit a wall again and again, woke up again and again, practiced again and again, and broke through again and again, and finally embarked on a road to success in Socialism with Chinese characteristics."

　　Socialism with Chinese characteristics Road is a right path on earth, which belongs not only to China, but also to the world. Socialism with Chinese characteristics’s entry into a new era means that it provides a brand-new choice for countries and nations in the world who want to speed up their development and maintain their independence, and expands the way for developing countries to move towards modernization.

　　On the choice of modernization road, China has always advocated the diversification of development mode. No one should regard his own development road as a statue, let alone impose his own development road on others, and has always resolutely safeguarded the diversity of human civilization development. However, this does not mean that China’s modernization road has no reference significance for the modernization of developing countries. In fact, since the international financial crisis, there have been many problems in the western development model and road, and the prospects are worrying, and the world has generally begun to lose confidence in it. Many developing countries have paid special attention to studying and learning from the valuable experience of Socialism with Chinese characteristics Road, which is "unique in scenery".

　　Socialism with Chinese characteristics Road shows the world that there is no universally applicable development road in the world, and the modernization road should proceed from the national conditions. The road to modernization should put people’s interests first, and take improving people’s lives and enhancing people’s well-being as the starting point and the end result. The road to modernization should adhere to reform and innovation, and there is no way out of rigidity and stagnation. The road to modernization must persist in seeking common development through opening up, and closing the country to the outside world and beggar-thy-neighbor can only lead to a dead end.

　　3. Contributed to China’s wisdom and China’s plan to solve human problems.

　　Socialism with Chinese characteristics’s great contribution to the development history of human society lies in that it has fully demonstrated China’s image as a responsible big country that adheres to peaceful development, promotes common development, safeguards international fairness and justice, and contributes to mankind. At the same time, it has contributed and will continue to contribute to China’s wisdom and China’s plan to solve human problems.

　　China’s wisdom and China’s plan for maintaining world peace. Socialism with Chinese characteristics has not only greatly enhanced the power of loving and maintaining peace in the world, but also contributed to China’s solution to world peace problems, that is, abandoning the cold war mentality and power politics, unswervingly holding high the banner of peace, development, cooperation and win-win, adhering to the road of peaceful development, taking a new road of state-to-state exchanges of dialogue without confrontation and partnership without alliance, promoting civilized exchanges of harmony but diversity and eclecticism, and promoting the building of a community of human destiny.

　　Contributed to the Chinese program to promote the common development of mankind. Socialism with Chinese characteristics adheres to the principles of mutual respect, equal treatment, win-win cooperation and common development, insists that all countries are participants, contributors and sharers of global development, combines the interests of the people of China with the common interests of the people of all countries, and allows more countries and regions to participate in the construction of the Belt and Road. Welcome all parties to take the express train and free ride developed by China, strive for fair development for all countries, especially developing countries, and strive to enhance the development capacity of all countries, improve the international development environment, and

　　It should be pointed out that while China is committed to eradicating poverty, it has always actively carried out South-South cooperation, supported and helped developing countries, especially the least developed countries, to reduce poverty, improve people’s livelihood, improve the development environment, and promote the building of a community of human destiny. China has helped more than 120 developing countries to implement the Millennium Development Goals, which has injected a strong impetus into accelerating the overall development process of developing countries.

　　China’s wisdom and China’s plan to improve global governance. Socialism with Chinese characteristics adheres to the concept of global governance, advocates the democratization of international relations, insists that all countries, big or small, strong or weak, rich or poor, are equal, supports the United Nations to play an active role, supports expanding the representation and voice of developing countries in international affairs, insists that China should play a responsible role as a big country, actively participates in the reform and construction of the global governance system, and injects Chinese strength into the reform and optimization of global governance.

　　Contributed to the Chinese program of mankind’s pursuit of a better social system. Socialism with Chinese characteristics not only firmly believed that "history has not ended, nor can it be ended", but also declared the bankruptcy of "the conclusion of the end of history" and the bankruptcy of the one-line historical view based on the western institutional model. Socialism with Chinese characteristics contributed to the China wisdom of mankind in pursuing a better social system. China’s practice has explained a truth to the world: governing a country and promoting a country’s modernization is not just the way of the western system model, and countries can completely go out of their own way.

　　Socialism with Chinese characteristics has also provided China’s plan for mankind’s exploration of a better social system. For example, firmly occupy the moral commanding heights to promote the progress of human society and realize the beautiful ideals of mankind. Dare to open the door to stubborn diseases accumulated for many years, dare to touch deep-seated interests and contradictions, resolutely break through the shackles of ideas, resolutely break the barriers of solidification of interests, and resolutely remove institutional and institutional obstacles that hinder the development of social productive forces. Dare to promote theoretical innovation, practical innovation, institutional innovation and other aspects of innovation, so that the system is more mature and stereotyped, development is more quality, governance is more level, and people have a sense of gain, satisfaction and happiness.

　　 (Author: China Academy of Social Sciences Supreme Leader New Era Socialism with Chinese characteristics Thought Research Center Author: Liu Zhiming)

Writing/Photo courtesy of Liu Zhirong

You can’t always stay at home, but you have to travel, or commute to work, or go on business trips, sightseeing, and travel can’t be separated from subways, railways and highways. When you take subways, trains and highways, have you ever wondered: How are those tunnels dug through them?

Early tunnel excavation was manual plus blasting.

In the past, the way of tunnel excavation was manual excavation and blasting. For soil layer and gravel geology, manual excavation was used, and tools such as pickaxe and shovel were used to excavate the tunnel face. As far as rock geology is concerned, pickaxes and shovels can’t be dug, so it is necessary to use explosives to blast rocks at the tunnel face, and then transport the gravel out of the tunnel.

"Face" is a civil construction term, which refers to the excavation face that keeps advancing during tunnel construction.

As far as subway tunnels are concerned, in the past, the "open excavation and landfill method" technology was mostly adopted, that is, the street was destroyed first, and a ditch was dug by uncovering the cover, and then the tunnel wall was poured in the ditch. After the tunnel was built, it was buried and compacted with earthwork, and the street was repaired again. In the early days of Chinese mainland, the subway tunnel was excavated by "open excavation and landfill method", and later the "shield machine excavation method" was adopted. Shield machine was used to dig tunnels in the construction of Guangzhou’s first subway line (Line 1).

In the past hundred years, shield machines have gradually become popular in tunnel excavation. At present, shield machines are basically used in long tunnel excavation.

Britain used a shield machine to dig tunnels in 1825.

"Shield machine" is a name in China, generally known as "tunnel boring machine" (TBM) internationally, and "mole" in civil engineering jargon, because it digs holes underground like a mole.

In 1825, Britain used a shield machine when digging the Thames Tunnel. This shield machine was invented by Sir Mark issam Bald brunell, a French-born British engineer, and he applied for a patent for the shield machine. The Thames Tunnel is 396 meters long and passes through the Thames River in London.

In 1845, the international railway from France to Italy was opened. This railway ran across the Alps, and it was necessary to dig the Freres Tunnel at an altitude of 1,123 meters. This tunnel was 14 kilometers long, which was the longest tunnel in the world at that time. The tunnel ran through the Freres Peak at an altitude of 2,932 meters, that is to say, the maximum thickness of the rock above the tunnel was 1,809 meters.

In order to build this tunnel, Henry Joseph Mauss invented the "mountain cutting machine", which was manufactured in an arsenal near Turin, Italy in 1846. The "mountain cutter" looks like a locomotive, with more than 100 vibrating drill bits in front, which are used to smash the rocks on the face. "Mountain cutting machine" already has some functions of modern shield machine.

In 1853, ebenezer Talbot, an American, applied for the patent of shield machine, and the patent name was "Tunnel Boring Machine".

In 1870, john D bruton, an Englishman, developed and manufactured a shield machine with cutter head, which is very close to the shield machine widely used now.

In 1875, the French National Assembly passed a bill to build the English Channel Tunnel, and the British shield machine was selected for excavation. From June 1882 to March 1883, the shield machine excavated 1882 meters on the British side; Alexander Lavalle, a French contractor who built the Suez Canal, used a shield machine to dig 1,669 meters on the French side. Practice has proved that the efficiency of tunneling with shield machine is very high. However, the project was terminated in 1883 because France was later worried that Britain would use the English Channel Tunnel to attack France.

The success of shield machine in the English Channel Tunnel has inspired many civil engineers. In 1883, Britain used a shield machine to dig the tunnel under the Mersey River from Biegenheit to Liverpool, with a diameter of 2.1 meters and a length of 2 kilometers.

In the 20th century, people constantly improved the shield machine. Nowadays, all kinds of shield machines are constantly running in tunnel projects all over the world every day.

How does the shield machine dig the tunnel?

It is easier to understand the working principle of shield machine from its international common name "tunnel drilling rig": it is a big drilling rig that drills a hole in the ground or mountain.

Shield machine can be regarded as the largest construction machinery in civil engineering, with a large diameter of 178 meters and a length of more than 100 meters. The front of the shield machine is a huge cutter head with cutter head array. When driving, the cutter head rotates to cut the earth and stone on the tunnel face, and the muck flows into the muck bin from the gap of the cutter head, which is conveyed to the belt conveyor by the screw machine, and then transferred to another longer belt conveyor to transport it to the muck disposal site outside the tunnel, or transported to the tunnel by the track muck truck.

Readers with a little common sense should understand that if there is no thrust behind the cutter head, it is impossible to cut the earth and stone on the face. So, how to give the cutter head thrust?

This thrust comes from the hydraulic jack of the shield machine. If the tunnel is excavated on hard rock, two huge hydraulic jacks on the shield machine lean backward against the rock walls on both sides of the excavated tunnel and push the cutter head forward to cut the tunnel face.

If the tunnel is dug in the soft geological layer, the above method cannot be used, because the hydraulic jack will sink into the soft tunnel wall and cannot provide thrust. At this time, it is necessary to use another method to make several small hydraulic jacks push against the lining segment installed at the back at the same time to provide thrust for the cutter head horizontally forward, which is also a common shield method in subway tunnels at present.

The lining segment is the reinforced concrete precast member on the tunnel surface that we can see with our naked eyes in the tunnel. These segments are made in the ground reinforced concrete precast yard. After the segment is transported into the tunnel mouth, there is no need for manual intervention, and the transportation to installation is completely automatic.

The width of the lining segment should match the distance that the hydraulic jack advances each time, that is to say, the width of the segment is as many centimeters as the hydraulic jack advances each time. When the hydraulic jack is pushed to the end, the cutterhead stops rotating to cut the tunnel face, and segments are assembled around the tunnel in the shield section of the shield machine. The segment assembling machine on the shield machine is as dexterous as a human hand, movable, rotatable and retractable, which can assemble segments in place steadily and safely with accuracy of millimeter level.

When assembling a segment, several hydraulic jacks responsible for jacking the segment will contract, leaving a certain space for assembling the segment. After the segments are assembled in place, the hydraulic jack will stretch out and gently hold it, and so on until all segments in this circle are assembled in place. At this point, all the hydraulic jacks began to pressurize evenly, and together with the newly assembled segment, the cutter head was pushed forward by the reaction force to continue cutting the working face and move forward.

During the construction of the shield machine, the cutterhead cuts the tunnel face and assembles segments alternately, and the whole shield machine moves forward step by step under the push of the hydraulic jack until the tunnel is dug through. If the geology is soft, tens of meters can be excavated every day; If you encounter hard rocks, you can only dig dozens of centimeters every day.

The gap between the lining segment and the tunnel wall should be filled with mortar to reinforce the segment, maintain the stability of the whole lining and prevent water from leaking into the tunnel.

The series of complicated processes mentioned above are all completed automatically by the shield machine. There is a central control room in the shield machine, and all key parts of the shield machine have sensors, which transmit the collected data to the central control room. Operators can know the working situation of the shield machine through various data displayed on the display and intervene when necessary.

The cutter head on the cutter head should be maintained and replaced frequently. There is also a sensor on the cutter head. When the temperature of the cutter head rises to a certain value, it will send an alarm signal to the central control room.

How does the shield machine turn in the tunnel?

After reading this, some readers may ask, can the shield machine turn in the tunnel?

Of course you can. Most urban subway tunnels are excavated under the streets, and the tunnels are designed along the streets, with constant turns and "jumping up and down" according to the underground conditions. Highway and railway tunnels should also be selected according to landform, geology and hydrology, which also requires the shield machine to turn 360 degrees.

The turning of shield machine is realized by changing the cutting direction of cutter head with lining segment. Where a turn is needed, the width of each ring of lining segment is different. If turning to the left, the width of the right segment is designed to be wider than that of the left segment according to the turning radius. In this way, the hydraulic jack on the right will tilt the cutter head to the left to realize the left turning. If turning right, the width of the left segment is designed to be wider than that of the right segment according to the turning radius, so that the hydraulic jack on the left will tilt the cutter head to the right and realize the right turn. The steering principle of "jumping up and down" is the same as above.

At present, the largest shield machine in the world has a diameter of 17.5 meters.　　

On September 15th, 2006, the Niagara Tunnel, which was used for water diversion irrigation in Canada, was drilled. The tunnel was 10.2km long and passed 140m underground in Niagara Falls, Ontario, Canada. The shield machine used was "Big Becky" made by Robbins Company of the United States, with a diameter of 14.4m. The cutter head was driven by 15 motors with a power of 4.7 million watts (6,375 horsepower), which was the largest shield machine in the world at that time. The reason why tunnels should be dug in such a deep underground is to prevent shield construction from affecting ground buildings.

In 2011, the 5030-meter-long Spavo Tunnel near Florence, Italy was drilled. The rock shield machine used was Martina produced by Herrick Company of Germany. The shield has a diameter of 15.62 meters, a length of 130 meters, a weight of 4,500 tons, a cross-section of 192 square meters, a total power of 18 megawatts and a thrust of 40,000 tons. Herrick also designed a shield machine with a diameter of 19.25 meters, but it has not yet been built.

Bertha, a shield machine made by Hitachi Shipbuilding Co., Ltd. in Japan in 2012, has a diameter of 17.5 meters, a length of 110 meters and a weight of 7,000 tons. The cutter head has 260 cutter heads. This shield machine was ordered by the Washington State Transportation Bureau of the United States and used to replace the tunnel excavation of Alaska Viaduct on Highway 99 (the upper and lower lanes of the tunnel), which is by far the largest shield machine in the world.

Advantages and disadvantages of shield tunneling

There are many advantages in tunneling with shield machine. It is not affected by ground factors and can be constructed all day; It also does not destroy the ground buildings, cultural relics and natural environment, and belongs to ecological and environmental protection construction; Because the excavation, muck discharge and lining segment are all automated, a lot of labor is saved and the accident risk is reduced.

The main disadvantage of tunneling with shield machine is that the initial investment cost is too high. Most shield machines are customized according to tunnel design drawings, with long construction preparation period, high maintenance cost, and low economic benefits of tunneling short tunnels. Generally speaking, the tunnel length is more than 1 km, which has economic benefits.

Finally, the shield machine can not only dig circular tunnels, but also be designed to dig tunnels with arbitrary cross sections, such as rectangular tunnels and elliptical tunnels. People also use shield machines to dig water pipelines, sewage and drainage pipelines, and even power pipelines.