piston buffer change valve

例句：

1. 1.The piston buffer change valve is responsible for the smooth operation of the engine.
   活塞缓冲器更换阀负责发动机的平稳运行。
2. 2.The piston buffer change valve was designed to improve fuel efficiency.
   活塞缓冲器更换阀被设计用来提高燃油效率。
3. 3.The piston buffer change valve is a critical component in the engine's maintenance.
   活塞缓冲器更换阀是发动机维护中的关键部件。