crankpin grease

例句：

1. 1.The old car needed a lot of crankpin grease to keep running smoothly.
   这辆旧车需要很多曲柄销润滑油才能顺畅运行。
2. 2. The mechanic replaced the old crankpin grease with new one.
   机械师用新的曲柄销润滑油替换了旧的。
3. 3. The car was running fine after the mechanic added some crankpin grease.
   在机械师添加了一些曲柄销润滑油后，这辆车运行得非常好。