gaseous-propellant

例句：

1. 1. The rocket uses a gaseous propellant to reach orbit.
   火箭使用一种气体推进剂到达轨道。
2. 2.The spacecraft relies on the gaseous propellant for its thrust.
   航天器依靠这种气体推进剂来产生推力。
3. 3. The new engine uses a gaseous propellant that is more efficient than traditional ones.
   新型发动机使用了一种比传统发动机更高效的气体推进剂。