piston ring scuffing

例句：

1. 1.The piston ring was scuffed on the cylinder head, causing a significant amount of oil leakage.
   活塞环在气缸头上刮伤了，导致了大量的油泄漏。
2. 2.The mechanics had to replace the piston ring due to the severe scuffing caused by excessive wear.
   由于过度磨损导致的严重刮擦，机械师不得不更换活塞环。
3. 3. To prevent such issues, it is important to regularly inspect and maintain the piston rings in the engine.
   为了预防此类问题，定期检查和维护发动机中的活塞环非常重要。