Give a speech with simple geographical knowledge

The Hainan Space Launch Site, approved by the State Council and the Central Military Commission, broke ground in Wenchang City, Hainan Province yesterday, marking that the newly-built space launch site in China has entered a comprehensive construction stage. According to reports, as the launch site with the lowest latitude in China, Hainan Space Launch Site consists of a launch site and supporting monitoring stations. The geographical location of the launch site is about north latitude 19 degrees, including the launch area, technical area, experimental cooperation area and technical service support system. It is mainly used to launch a new generation of large-scale, non-toxic and pollution-free launch vehicles, forming the annual launch capacity of 10- 12 rockets. After the launch site is completed and put into use, it will become the first enclave of the Long March 5 large launch vehicle, which can launch large-tonnage spacecraft such as space station, large space telescope, recoverable lunar probe, deep space probe and super heavy application satellite, which has important strategic significance. After the completion of Wenchang Space Launch Site, Jiuquan Satellite Launch Site will continue to undertake launching tasks such as recoverable satellites and manned space projects, while Taiyuan Satellite Launch Site will still mainly undertake launching tasks in sun-synchronous orbit, and xichang satellite launch center will mainly undertake emergency launching tasks, which are complementary to Hainan Launch Site. Wenchang Space Field has four advantages. Pang Zhihao, a senior aerospace expert, said in an interview with reporters yesterday that Wenchang Space Field has four advantages: First, it has low latitude and is close to the equator. The launch vehicle improves its launch capability with the help of the earth's rotation force. The same rocket can carry about 300 kilograms more than other launch sites in China. In addition, from the sky near the equator, the correction angle is small after the satellite enters orbit, which greatly saves fuel. Second, it is convenient to transport large rockets. At present, rockets transported to Xichang, Jiuquan and Taiyuan space launch sites are all transported by rail. Due to the small diameter of railway tunnels, all of them are slender rockets, generally within 4 meters in diameter, which also limits the carrying capacity of rockets in China. After the completion of Wenchang launch site, the transportation constraints have been solved. The Long March 5 large launch vehicle being developed in China with a diameter of 5 meters and a carrying capacity of 25 tons can be safely transported to Hainan from Tianjin, a research and development base. The Long March V carrier rocket will be used to launch large-tonnage space stations and large-scale space probes, including those samples that will return to Earth from the moon in the lunar exploration project. Third: after the rocket is launched from Wenchang launch site, it does not pass through densely populated areas. The launch site covers 90 degrees to 175 degrees, and the range of 1000 kilometers is the sea area. The safety of rocket navigation area and debris landing area is good. Fourth, facilitate international cooperation. Wenchang launch site has convenient maritime transportation and large space for international cooperation. In addition, the completion of the space field can reduce the cost of rocket transportation and launch, and the large-scale rocket to be developed in China will greatly enhance the comprehensive competitiveness of China's space launch.