In order to facilitate the extravehicular activity with the astronauts, the spacecraft cabin door from the 850 mm to 750 mm and so on.是什么意思_In order to facilitate the extravehicular activity with the astronauts, the spacecraft cabin door from the 850 mm to 750 mm and so on.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句