在过去，外部安全气囊用于帮助无人苍着陆，包括火星探路者的着陆。

External airbags have been used in the past to help unmanned space landers, including Mars Pathfinder, touch down.

youdao

在过去，外部安全气囊用于帮助无人苍着陆，包括火星探路者的着陆。

External airbags have been used in the past to help unmanned space landers, including Mars Pathfinder, touch down.

youdao