hot propellant gas

例句：

1. 1.The hot propellant gas is used to power the spacecraft's engines.
   热推进剂气体用于为航天器引擎提供动力。
2. 2. The hot propellant gas was released into the atmosphere during the launch.
   在发射过程中，热推进剂气体被释放到大气中。
3. 3. The hot propellant gas was responsible for the successful landing of the spacecraft.
   热推进剂气体是航天器成功着陆的功臣。