中国载人航天工程,代号为“921工程”。1992年9月21日,经中央批准,中国载人航天工程正式实施。自1999年以来,中国载人航天工程共进行了十次飞行任务,先后实现了从无人飞行到载人飞行,从一人一天到多人多天,从舱内实验到出舱活动,从单个飞行器飞行到两个航天器交会对接等一系列重大突破,取得了圆满成功。 China’s manned space project, code-named “921 Project ”. On September 21, 1992, with the approval of the Central Government, China’s manned space project was officially implemented. Since 1999, China’s manned space project has carried out 10 missions, from unmanned flights to manned flights, from one day to many people and from in-cabin experiments to outbound activities. From a single The aircraft flew to a series of major breakthroughs in the rendezvous and docking of two spacecrafts and achieved complete success.