What facilities are inside a bomb shelter in China? What facilities are inside the shelters in the United States?

Chinese bomb shelters are far smaller than those in the West In this regard, many Chinese experts believe that these speculations appear ridiculous. Zhang Zhaozhong, a professor at China's National Defense University, said in an interview with the Global Times that although air-raid shelters are a product of war, the construction of air-raid shelters such as human defense measures does not mean that war is imminent, and does not mean that there is an attempt to war against other countries. Other experts also believe that many countries in the world, including the United Kingdom and the United States, have a much larger area of human defense facilities per capita than China, and that modern air-raid shelters, in addition to being used for shelter during wartime, are more often used for civilian purposes during peacetime, such as being developed into shopping malls and for coping with many sudden disasters. Some overseas media have made wild speculations, especially by opposing such a civil defense facility to China's "peaceful rise", which is biased even if it does not have an ulterior motive.　In fact, air-raid shelter is a basic element of civil defense construction, its construction is to reduce war damage. Throughout the world, the more powerful a country is, the more importance it attaches to the construction of civil defense measures such as air-raid shelters. In the United States mainland, which has never suffered a war in nearly 100 years, almost every larger-scale city has built a bomb shelter. The underground military facilities of the United States are the most advanced in the world. The United States of America's civil defense project investment is also about more than 1 billion dollars a year, and in recent years is still increasing. The United States has built nationwide air defense fortifications that can accommodate more than 100 million people, has built about 600,000 basically applicable shelters, and 75% of the buildings in cities have basements with a total area of 650 million square meters.　　In Switzerland, which has long pursued a policy of neutrality, the enthusiasm and achievements in building air-raid shelters are no less impressive. Swiss law requires that every residence must be constructed with an underground air defense facility, which must be able to resist shock waves of a certain intensity and be equipped with filters for defense against chemical weapons, nuclear radioactive fallout, and potable water and reserve food that lasts for at least two weeks.　　In Japan's capital, Tokyo, underground cities (streets) throughout the city, with an area of more than 10,000 square meters of underground cities (streets) there are 17, of which the Yaesu underground city in front of the Tokyo Railway Station has an area of more than 100,000 square meters. Japan's larger underground cities are equipped with an ambulance center monitoring room, closed-circuit television monitoring system, temperature, smoke alarm system, gas alarm and communication systems, etc., in the event of an accident, can be disposed of in a timely manner.　　Germany's civil defense facilities are more demanding. Global Times special correspondent in Germany, Aoki not long ago visited a bomb shelter outside of Hamburg, Germany, found that the bomb shelter 60 meters deep from the ground, **** divided into 10 units, each unit can accommodate 1,000 people. Air-raid shelter, hospitals, baby room, drinking water treatment station, air purification room, refrigeration equipment room, material storage and other medical care and service security equipment is complete, in addition to each unit has an independent power supply, water supply, ventilation facilities. In case of war, it can provide food and accommodation to 10,000 people for at least one month. The entire air-raid shelter annual maintenance costs about 1 million euros. According to reports, there are at least 1,000 such bomb shelters in Germany. In addition, according to the regulations, almost every family in Germany has a "private bomb shelter" - basement. A neighbor of this reporter's house has a "bomb shelter" where, in addition to food, there is a wireless phone and an air freshener.　　Compared with these and many other countries, China's construction of bomb shelters is still at a relatively low level. Currently, in terms of the ability of countries around the world to hide their citizens underground, Israel can reach 100%, Switzerland 90%, and the United States nearly 60%. BBC reported on the construction of air-raid shelters in Shanghai, saying that the city's air-raid shelters can only accommodate about 1.1% of the city's population. According to relevant information, most cities in China have a small area of civil defense facilities per capita, in addition to a small number of cities to reach more than 0.5 square meters, many of the first and second category of cities less than 0.25 square meters, the third category of cities is even less, and many counties (cities), this work has not even been carried out.