A group of hound lovers in Sichuan met through the Internet and gathered in the "Wildlife Protection Station" network group in the name of protecting wild animals, but they have been carrying hounds and shotguns in Jiuzhaigou for a long time to round up and kill wild animals. Over the years, many endangered national key protected wildlife have fallen under their guns.

　　On April 21st, The Paper learned from the Forest Public Security Bureau of Jiuzhaigou County, Sichuan Province that the eight hound lovers had been arrested and brought to justice, and now they have been transferred to the procuratorate for examination and prosecution on the crimes of illegally hunting and killing precious and endangered wild animals, illegal hunting, illegal manufacturing of guns and illegal possession of guns.

　　According to the police investigation, in recent years, Xu Mouqiang, a villager from Balang Village, Yuwa Township, Jiuzhaigou County, went hunting in the mountains for 15 times alone or in partnership with others. Among them, many national second-class protected wild animals such as gazelle and red-bellied pheasant were hunted.

　　Wild animal samples found by the police from Xu Mouqiang’s home The pictures in this article are all provided by Jiuzhaigou County Forest Public Security Bureau.

　　16 pieces of wild animal meat were found in the freezer.

　　On December 17, 2019, the police of Yuwa Police Station of Jiuzhaigou County Forest Public Security Bureau in Sichuan Province received a report that Xu Mouqiang, a villager in Balang Village, Yuwa Township, illegally hunted wild animals. After receiving the police, Jiuzhaigou Forest Public Security Bureau immediately organized the police to investigate.

　　According to the police investigating the case, on December 18, 2019, the police searched Xu Mouqiang’s home according to law. During the search, 16 pieces of suspected wild animal meat were found in the freezer of his living room, and 1 piece of suspected wild animal fur, 1 suspected shotgun, 1 air nail gun and 3 knives were found at home. Suspected hunting bullets, shell casings, air bullets, steel balls, air nail bullets, 21 fast bullets and 3 knives.

　　The shotgun found in Xu Mouqiang’s home

　　On December 18, 2019, Xu Mouqiang took the initiative to go to the Jiuzhaigou County Forest Public Security Bureau for an inquiry. After the case, the suspect Xu Mouqiang truthfully confessed the illegal hunting of wild animals, the manufacture of guns and the illegal possession of guns. After investigation, in recent years, Xu Mouqiang hunted 15 times in the mountains by dogs, shooting, etc., killing 1 blue sheep, 4 mountain donkeys, 1 wild boar, 2 Sichuan pigs, 18 pheasants and 1 green deer.

　　Jiuzhaigou County Forest Public Security Bureau entrusted Sichuan Nanshan Forestry Judicial Appraisal Center on January 7, 2020 to identify the relationship between species and protection level samples of suspected wild animals involved in the case. The identification results show that among the suspected wild animals involved in the case, there are 2 mountain donkeys, 1 scientific name gazelle and 1 scientific name impala, which belong to the national second-class key protected wild animals. There are also 8 pheasants, including 2 blue pheasants, 3 spoon chickens and 3 red-bellied pheasants, which also belong to the national second-class key protected wild animals. In addition, three green deer and Sichuan pigs belong to three animals, that is, terrestrial wild animals protected by the state, which are beneficial or have important economic and scientific research value.

　　Poaching in a wild animal protection coat

　　According to the police handling the case of Jiuzhaigou Forest Public Security Bureau, The Paper was told that among the eight suspects involved, five were natives of Jiuzhaigou County, Aba Prefecture, one was a cattle dealer in Pingwu County, Mianyang, and the other two were Meishan people who lived in Chengdu for a long time and mainly engaged in the pet dog business.

　　Because of their common interest in training hounds, these eight people established a WeChat group of "Wildlife Protection Station" through Aauto Quicker and other networks. It’s called wildlife protection, and in fact, they all communicate and plan to kill wild animals.

　　The Paper noticed that the police also found a banner in Xu Mouqiang’s home, which read: Give it to the hound team of the mountain dog brothers, "Together Brothers, good faith service" was given to the flag bearer and the hunter was Zhou Mouquan.

　　The hound team received a banner.

　　According to the police investigating the case, these people also trained hunting dogs to sell, which was a pennant given by a person who bought hunting dogs. Because of their common hobbies, they often struggle to hunt together.

　　According to the investigation by the police, Xu Mouqiang went hunting 15 times in the mountains alone or in partnership with others in violation of the wildlife protection laws and regulations. Most of the hunting places were in Balang Village where he was located, and 12 of them took hunting dogs to participate in the round-up.

　　Among the three guns seized by the police from Xu Mouqiang’s home, the single-barrel shotgun was borrowed from Yang Decheng, the air gun was borrowed from Yang Shiming, and the nail gun was modified from the nail shooter and seamless steel pipe he bought online.

　　At present, the case has been transferred to the People’s Procuratorate of Jiuzhaigou County for prosecution, and 8 suspects involved in the crime of illegal hunting and killing precious and endangered wild animals, illegal hunting, illegal manufacturing of guns and illegal possession of guns.

　　Jiuzhaigou forest police searched for guns abandoned by escaped hunters in the river (not in this case)

Fast Science and Technology reported on January 4th that Tank 300, as the domestic off-road "online celebrity Car", has a sales volume of 10,000 vehicles all the year round. However, the PHEV plug-in version of this car has not been launched for a long time, which makes many car owners waiting for money very anxious.

According to domestic media reports, Gu Yukun, executive deputy general manager of the Great Wall TANK brand, said when talking about the listing time of the tank 300 Hi4-T in Weibo recently:"300 is currently in global supply, close to full capacity, and is coordinating production capacity resources. It is expected to be listed after the Spring Festival."

This year’s Spring Festival holiday is from February 10th to February 17th. From the time point of view, the tank 300 Hi4-T will be listed in late February at the earliest.

Prior to this, the tank 300PHEV plug-in version has appeared in the new car declaration catalogue of the Ministry of Industry and Information Technology, and the car will also be the tank 300 Hi4-T version.

It is equipped with the same 2.0T engine and ternary lithium battery pack as the tank 500 Hi4-T,The total energy of the power battery pack is 37.11kWh, matching the vertical 9HAT gearbox.The maximum power is 185kW, which is stronger than the 167kW of 2.0T on the current fuel version.

The battery life is 105 kilometers, and the fuel consumption is 2.29L/100km. Based on the price of No.92 gasoline in Beijing today, it only takes about 17 cents to run one kilometer.

However, this is the fuel consumption of the vehicle under WLTC condition, and the fuel consumption should be above 5L/100km when driving in urban areas or off-road conditions.

Even so, compared with the fuel consumption of 9-10L/100km in the urban area of the fuel tank 300, the fuel consumption level of the tank 300 Hi4-T version will be greatly reduced, and the competitiveness of the vehicle will be enhanced simultaneously.

[Autohome Suzhou Discount Promotion Channel] Recently, the promotion in Suzhou is underway, with a maximum discount of 28,000 yuan and a minimum starting price of 188,600 yuan. For more preferential information, you can click "Check the car price" in the quotation form to get higher discounts.

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。

　　　　　　 CCTV News:Israel local time today (March 2) morning, that is, Beijing time today (March 2) afternoon, Israel’s 23rd parliamentary elections began to vote. At present, 29 political parties and coalitions of political parties have decided to stand for election. According to the latest polls, the Likud Party, the largest right-wing conservative party in Israel led by the current Prime Minister Benjamin Netanyahu, and the Blue and White Party, the middle party, rank high and have equal strength.

　　　　　　 This election is the first time that Israel has held a general election for the third time in less than a year. In April and September 2019, Israel held the 21st and 22nd parliamentary elections. After two sessions of parliament, they were dissolved because of the failure to form a cabinet.

　　　　　　 Israel is a parliamentary country, with a total of 120 seats in the parliament, and political parties with more than half of the seats can form a separate cabinet. However, due to the proliferation of small and medium-sized parties, there has never been a single party forming a cabinet in Israeli history.

source map

　　　　　　 [News Background] It is difficult to form a cabinet. Israel has held three general elections in less than a year.

　　　　　　 Due to the serious differences between parties and the difficulty in reconciling interests, Israel has been deadlocked in forming a cabinet after the first two general elections, and the new government has always been "difficult to produce", which has also led to the "strange phenomenon" of Israel holding three general elections in less than one year for the first time in history.

　　　　　　 On April 9 last year, Israel held the 21st parliamentary election. Although Netanyahu, the leader of Likud Group and the current Prime Minister, obtained the right to form a cabinet, he failed to successfully form a ruling Coalition within the prescribed time limit. The reason is that the right-wing party "Israel is our homeland" led by former Israeli Defense Minister Lieberman is difficult to balance the interests of several other religious parties, which led to the "abortion" of forming a cabinet and forced the parliament to dissolve and hold another general election.

　　　　　　 After the 22nd parliamentary election held on September 17th last year, Israeli President rivlin authorized Netanyahu and the leader of the "Blue and White Party" Ganz to form a cabinet, but their efforts to form a cabinet still ended in failure because of the great differences between the parties. Lieberman called for the formation of a "broad and free coalition government" composed of Likud Group, Blue White Party and Israel is our homeland. However, the negotiations among Netanyahu, Ganz and Lieberman failed to reach an agreement.

　　　　　　 Compared with the previous two general elections, the third general election to be voted today has added several uncertainties.

　　　　　　 First of all, on January 28th, the United States announced the so-called "New Middle East Peace Plan" to promote the settlement of the Palestinian-Israeli issue, which was explicitly rejected by the Palestinian side, and the tension between Palestine and Israel escalated again. And about half of Israelis believe that this move of the United States aims to intervene in Israeli elections and help Netanyahu win — — But not long ago, Netanyahu, suspected of corruption, was formally charged, and the case will be heard on the 17th of this month, half a month after the general election, which is very likely to affect voters’ voting intention.

　　　　　　 At the same time, there have been some changes in the position of Netanyahu’s main rival Ganz — — Although "refusing to face trial with Netanyahu ‘ Take turns to govern ’ " His position has not changed, but Ganz turned to oppose the "Joint List" party of the Arab political party alliance to join the Coalition government and supported the so-called "New Middle East Peace Plan" of the United States, which may make the "Blue and White Party" lose some votes of the center-left voters.

　　　　　　 [News Watch] I am afraid that the deadlock in the formation of the cabinet is still difficult to break.

　　　　　　 At present, analysts are generally worried that after the end of the third general election in less than a year, Israel may still face a "tug-of-war" to form a cabinet, which will lead to the deadlock of forming a cabinet again.

　　　　　　 Many polls before the election showed that Likud Group and Blue and White Party are still evenly matched, and both sides may win about 33 seats, with a difference of at most two seats — — The third general election may still be difficult to change the political deadlock after the previous two general elections.

　　　　　　 In the previous two general elections, the Likud Party and the Blue-White Party tried their best to win over their allies, but they failed to win at least 61 of the 120 parliamentary seats needed to form a cabinet. It can be seen that after the third general election, the two parties still need to win over the "Israel is our home" party led by Lieberman. However, it is still very difficult for both Netanyahu and Ganz to pull Lieberman into their respective camps.

　　　　　　 As domestic analysts in Israel have said, "it is hard to see substantial changes in the Israeli political situation after the third general election", and the dystocia of the new government will directly affect the deliberation of Israel’s national budget and the introduction of important decisions. Israel’s political system is facing a serious crisis, and some people even have to silently accept the possibility of holding the fourth general election next — — If we want to break the deadlock in the formation of the cabinet, we must make a decisive compromise between the various parties.

If you want to buy a car, it is estimated that you are also struggling to buy what products are best for you. The richness of the configuration is closely linked to the cost performance of a car, and many people have mentioned it. As for the outstanding performance of the car, please read it together.

Let’s look at the appearance of Star Era ET first. The front of Star Era ET looks very sharp and sporty. Then it adopts a deep headlight design, which improves its level. The car is equipped with LED daytime running lights, automatic opening and closing, adaptive far and near light, delayed closing and so on. Coming to the side of the car body, the size of the car body is 4955 mm * 1975 mm * 1698 mm. The car adopts fashionable and atmospheric lines, which gives people a very eye-catching feeling. With large-sized thick-walled tires, it looks full of sports. In the design of the rear end, the rear end looks more fashionable and generous, and the taillights are very fashionable, very fashionable and concise.

When you get into the car, the overall visual effect of Star Era ET interior is very distinctive, and the visual effect is quite unique. The steering wheel of the car is well designed, equipped with electric up and down+front and rear adjustment, steering wheel memory, steering wheel heating and other functions, giving people an impulse to control it. Take a look at the central control. The design of the center console is reasonable, which makes the interior style impressive and conforms to the temperament of the car. Let Xiaobian introduce the dashboard and seats. The dashboard design is remarkable and very eye-catching. The car uses leather seats, equipped with auxiliary seat with memory electric adjustment, seat with memory electric adjustment, seat proportion down and other functions, and the overall comfort and wrapping are not bad.

Xing Ji Yuan ET matched gearbox, 413KW, 691N.m, with good power performance.

The car is equipped with car networking, driving mode selection, remote control key, Bluetooth key, NFC/RFID key, UWB digital key, rear wiper, interior atmosphere light and other configurations, and the configuration has reached the mainstream level of the same level.

Summary: The car introduced today is remarkable in terms of space, configuration and power, and home travel is also a good helper.

　　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.

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Cadillac XT6 shows the modern design concept of elegance and strength. Its front face design is unique, and the iconic shield-shaped air intake grille is made of chrome, giving the vehicle exquisite and atmospheric visual effects. The overall style of streamlined body lines combined with tough contours creates an aesthetic experience that pays equal attention to luxury and dynamics. XT6 fully demonstrates Cadillac’s unique views on luxury SUV design, both in details and overall shape.

Cadillac XT6 shows the unique charm of luxury cars with its elegant and smooth side design. The body size is 5056mm x 1964mm x 1777mm, and the wheelbase is 2863mm, which ensures a spacious interior space. The balanced distribution of the front wheel track of 1687mm and the rear wheel track of 1683mm not only enhances the stability of the vehicle, but also improves the dynamic performance of driving. Tyre size is 235/65 R18, with exquisite rim design, which is not only practical and wear-resistant, but also adds visual beauty to the vehicle. On the whole, XT6’s side lines are in harmony with proportions, which shows the perfect combination of luxury and strength.

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A starving baby, if the mother has other conditions such as insufficient milk, will usually be fed by other lactating mothers instead. This kind of behavior in humans is popularly called "wet nurse feeding", and scientifically it is defined as allomaternalbreastfeeding.

In fact, scientists have observed similar phenomena not only in humans, but also in rodents and primates. A recent study by scientists in China has further expanded the scope: the research team led by Zuo Fu, a professor at the School of Life Science and Technology of Central South University of Forestry and Technology, and Li Ming, head of the primate ecology research group of the Institute of Zoology, Chinese Academy of Sciences, obtained the evidence of the old world monkey’s maternal lactation for the first time. The research results were published on February 21st, Beijing time, in Science Progress, a sub-magazine of Science.

Breastfeeding behavior of Sichuan golden monkey. The pictures in this paper are provided by the research team.

In an interview with The Paper reporter (www.thepaper.cn), Zuo Fu said, "This is the first time to report that regular partheno-lactation exists in Old World monkeys, which has expanded the distribution of partheno-lactation in primates and made it appear in different groups such as proto-monkeys, New World monkeys, Old World monkeys and even humans."

Higher primates, that is, anthropophagus, include New World monkeys distributed in South America and Old World monkeys distributed in Eurasia (Old World). Previously, there was no report about the maternal lactation behavior of Old World monkeys. According to Zuo Fu, the research team started this new research in 2012 and observed it continuously for five years. The research was carried out in Dalongtan Research Base of Shennongjia National Park in Hubei Province.

The research base has a group of about 90 golden snub-nosed monkey. Sichuan golden monkey is endemic to China, with a golden fur. They are distributed in the forests at the junction of Hubei, Sichuan, Shaanxi and Gansu, and distributed in Minshan, Qionglai, Daxueshan, Xiaoliangshan, Qinling, Shennongjia and the northern slope of Motianling.

"We began to study the monkey group in 2006, and the researchers were able to identify all individuals over 3 years old in the group." Zuo Fu said that the birth of Sichuan golden monkey is basically concentrated in the period from March to May every year. Because the coat color and body shape of baby monkeys are similar, it is not easy to identify them, so there is no concern about whether there is maternal breastfeeding at first. "Until the spring of 2011, after accidentally finding a female monkey feeding two baby monkeys at the same time, the research team carefully observed the breastfeeding behavior of Sichuan golden monkeys in the group and found that the breastfeeding behavior of different mothers was more common."

This latest paper shows that in the field observation conducted by Zuo Fu et al. for five years in a row and after five farrowing seasons, 40 (87%) of 46 baby monkeys of Sichuan golden monkey were breast-fed by one or more non-mother monkeys, and 22 (48%) of 46 baby monkeys were breast-fed by at least two other mothers. This behavior of maternal breastfeeding mainly occurs in the first three months after the baby monkey is born.

The research team also found that 6 of the 46 baby monkeys did not receive maternal breastfeeding at all, and 4 of them died in the cold winter. In comparison, among the 40 baby monkeys that were breast-fed by at least one non-mother monkey, a total of 6 eventually died, and the mortality rate was greatly reduced.

It is worth noting that Sichuan golden monkey generally lives in temperate forests with high altitude, and it is extremely cold in winter for five months, and the food supply also has strong seasonal changes. Partheno-breastfeeding behavior may help baby monkeys fight against unfavorable living environment.

Zuo Fu said, "The behavior of maternal breastfeeding may provide energy support for the rapid development of baby monkeys after birth, so that the baby monkeys can feed in advance to achieve a good development state before the severe winter, and can successfully survive the winter of extreme low temperature and food shortage. This behavior may also provide energy support for the rapid development of the brain, which makes the brain capacity of golden monkeys relatively large."

Generally speaking, the behavior of maternal breastfeeding only occurs within three months or less after the baby monkey is born, and it almost stops when the baby monkey begins to eat natural food.

In addition, the research team also found that the maternal breastfeeding behavior in Sichuan golden monkey still follows certain principles. Baby monkeys can not suck milk in all non-maternal monkeys: the maternal breastfeeding behavior of Sichuan golden monkey only occurs between females who are related or breastfeeding each other.

It is mentioned in the paper that kinship-usually the "grandmother" or "aunt" of baby monkeys, or reciprocity plays an important role in maternal breastfeeding. About 90% female monkeys (25 out of 28) will breast-feed the cubs of other female monkeys who have breast-fed their own baby monkeys in the current or next year, which is similar to "reward".

Zuo Fu believes that the maternal breastfeeding behavior occurs between females who are related or cooperate with each other, and the mother will allow other females to contact the baby monkeys in the early stage of development, which is necessary for the infant-mother-maternal care relationship in the early stage of human evolution, so this study also provides a new perspective for understanding human evolution.

　　　　Biological samples collected from the dead China woman’s body on the "Blagoveshchensk-Moscow" train, as well as laboratory analysis data in the carriage, have arrived in Moscow.

　　　　Onishchenko, director of the Russian Consumer Rights Protection and Public Welfare Supervision Bureau and chief epidemic prevention physician of the Russian Federation, made the above statement on Thursday, according to the Russian new network news.

　　　　He said that the inspection will be conducted simultaneously in two specialized laboratories of the Ministry of Health and one laboratory of the Ministry of National Defense.

　　　　He pointed out that due to the death of a woman in China on the train, the health department started the traditional epidemic prevention emergency mechanism.

　　　　On the morning of April 15th, a 24-year-old Russian woman died unexpectedly while riding a long-distance train from the Russian Far East city of Blagoveshchensk to Moscow. Fifty-one Russian migrant workers and two Russian train attendants were sent to the local infectious disease hospital for isolation observation when the train stopped at the Kirov station. It is reported that the final destination of these China migrant workers is Kaluga.

　　　　This incident has attracted great attention from the Ministry of Foreign Affairs of China. On April 16th, Foreign Ministry spokeswoman Jiang Yu said at a regular press conference that the Ministry of Foreign Affairs attached great importance to the situation that "a Russian woman may have died of pneumonia while taking a train in China".

Editor: Li Xiuwei