cogging roll

例句：

1. 1. The car's engine is running smoothly with the new cogging roll installed.
   新安装的飞轮使汽车发动机运行顺畅。
2. 2. The mechanic checked the cogging roll and found it to be in good condition.
   机械师检查了飞轮，发现它状况良好。
3. 3.The engineer replaced the worn out cogging roll with a new one.
   工程师用一个新的飞轮替换了磨损的部件。