top groove wear

例句：

1. 1. Theengine has suffered from top groove wear,which is causing it to overheat.
   发动机遭受了顶槽磨损，导致它过热。
2. 2. The car's suspension system was severely affectedby top groove wear.
   汽车的悬挂系统因顶槽磨损而受到严重影响。
3. 3. Theengineer inspected the gearbox and foundthat there was significant top groove wear.
   工程师检查了变速箱，发现有严重的顶槽磨损。