free piston gas turbine

例句：

1. 1. The free piston gas turbine is a type of power plant that uses the combustion of gas to generate electricity.
   自由活塞式燃气轮机是一种利用气体燃烧来产生电力的发电装置。
2. 2. In this case, the free piston gas turbine was used to power the spacecraft during its launch.
   在这种情况下，自由活塞式燃气轮机被用来为飞船的发射提供动力。
3. 3. The free piston gas turbine has become increasingly popular in recent years due to its high efficiency and low emissions.
   由于其高效率和低排放，自由活塞式燃气轮机近年来越来越受欢迎。