compression piston ring

例句：

1. 1. Theengine's performance was significantly improved by replacing the old compression piston ring with a new one.
   通过更换旧的压缩活塞环，发动机的性能得到了显著提升。
2. 2. During maintenance, technicians replace the compression piston ring to ensure smooth operation ofthe engine.
   在维护期间，技术人员会更换压缩活塞环，以确保发动机的顺畅运行。
3. 3. The engineer carefully inspected the compression piston ring to ensure it was in good condition before installing it back into the engine.
   工程师仔细检查了压缩活塞环，确保其处于良好状态后，才将其重新安装回发动机。