1. Their spaceship was equipped with a double door, which was fitted with a bellows between the ship and the outside.
    他们的太空飞船上装有两层门, 在这两层门之间, 即飞船与外界之间, 装有一个减压舱.

2. The spaceship made a splashdown in the sea.
    宇宙飞船降落在海中。

3. An astronaut will attempt to leave the stationary spaceship and then return to it.
    一名宇航员试着离开静止不动的宇宙飞船，然后再返回。