two-gas space suit

例句：

1. 1.The astronauts wore two-gas space suits during the launch.
   宇航员们在发射时穿着双气空间服。
2. 2. The firefighters put on their two-gas space suits to fight the fire.
   消防员穿上了双气空间服去扑灭大火。
3. 3.The astronauts were wearing two-gas space suits when they landed on the moon.
   当宇航员们登陆月球时，他们穿着双气空间服。