... rocket engine 火箭发动机 rocket engine module (REM) 火箭发动机组 rocket fuel 火箭燃料 ...
基于18个网页-相关网页
They had to do this by firing the lunar module rocket engine for just the right amount of time.
VOA: special.2009.07.22
应用推荐
模块上移
模块下移
不移动