It also wrapped up the test flight for the first commercially owned and operated crewed spacecraft under NASA's Commercial Crew Program.
这也代表了NASA商业载人项目下首个由私营企业建造和运营的飞船承担的载人试飞任务的圆满成功。
【美载人龙飞船返回地球】相关文章:
★ 你捡到钱包会还给失主吗?调查显示,钱包里钱越多归还率越高
最新
2020-09-15
2020-09-15
2020-09-15
2020-09-15
2020-09-15
2020-09-15