SpaceX's Falcon 9 repetitive rockets are maturing, and there have been several explosions before. US Space Exploration Technology Corporation (SpaceX) launched a Falcon 9 rocket to carry out the international space station freight replenishment mission on June 28, 2015. After the rocket was lifted for 2 minutes and a half, the explosion suddenly disintegrated, and the cargo compartment carrying about 2,500 kilograms of supply was also Blow up. Space Exploration CEO SpaceX CEO Elon Musk said that the initial cause of the explosion after the Falcon 9 rocket took off has been found, possibly caused by a broken pole in an oxygen tank. This rod is 2 feet (about 0.6 meters) long and 1 inch (about 0.02 meters) thick. If you want to trace SpaceX's last rocket launch failure, it was still 7 years ago. That is 2008. At the 2017 Global Space Exploration Conference held on June 8, China Aerospace Science and Technology Corporation officially announced that China has begun to develop reusable rockets! The Chinese launch vehicle started in the 1960s and has a total of 17 types of launch. It has the ability to launch low, medium and high orbits with different payloads, and is more difficult to use and can significantly reduce costs. The field is moving forward. According to Lu Yu, director of the Science and Technology Committee of China Academy of Aerospace Science and Technology Corporation, China is currently conducting research on the reuse of launch vehicle technology, including umbrella drop recovery and vertical takeoff and landing technology. Some tests have been completed and some key technologies have also made breakthroughs. China has proposed the development of a "three-step" development of the lift-type reusable carrier: In the first step, the rocket power is partially reused; In the second step, the rocket power is completely reused; The third step is to combine the powered aircraft. In addition, the Chinese launch vehicle will continue to make great strides: - The existing Long March series of launch vehicle capabilities will continue to improve, and the key to launching a heavy-duty launch vehicle with a capacity of 140 tons of LEO (near-Earth orbit) and a capacity of 50 tons of LTO (geo-monthly orbit) (provisionally known as Long March 9) is underway. Technical research; - Developed the low-cost medium-sized launch vehicle Long March 8, and based on this and a new generation of launch vehicles, it can build a new generation of medium-high-rail medium-sized launch vehicles, comprehensively update China's Long March series of launch vehicle types and enhance commercial competitiveness; - Continue to work hard to ensure a good space. Mini Substation,Solar Power Substation,Step-Up Solar Power Substation,Step-Up Transformer Hangzhou Qiantang River Electric Group Co., Ltd.(QRE) , https://www.qretransformer.com