crank guide

例句：

1. 1. The car's engine is running smoothly with the new crank guide installed.
   安装了新的曲柄导杆后，汽车发动机运行顺畅。
2. 2. The mechanic replaced the worn-out crank guide with a brand new one.
   技师用全新的曲柄导杆替换了磨损的部件。
3. 3.The old crank guide was causing the engine to misfire.
   旧的曲柄导杆导致发动机出现故障。