我国首艘货运飞船天舟一号成功发射将开启空间站时代4月20日,我国首艘货运飞船天舟一号在海南文昌航天发射场发射成功。这是我国载人航天工程“三步走”发展战略第二步的收官之作,标志着我国即将开启空间站时代。本次发射是长征七号与天舟一号货运飞船共同组成的空间站货物运输系统的首次飞行。 China’s first cargo spacecraft successfully launched on the 1st spacecraft will open the space station era April 20, China’s first cargo spacecraft on the 1st spacecraft in Hainan Wenchang space launch site successfully launched. This is the final conclusion of the second step of China’s manned space project and the “three steps” development strategy, marking the moment that China is about to open the space station. This launch is the first flight of the space station cargo transport system, which is composed of the Long March VII and the day boat one cargo spacecraft.