grease hole plug

例句：

1. 1.The grease plug was removed to allow the engine to run smoothly.
   为了使发动机运行顺畅，需要取出油嘴封堵器。
2. 2.The grease plug is a small device that prevents oil from leaking out of the engine.
   油嘴封堵器是一种小型装置，用于防止机油从发动机中泄漏。
3. 3.The grease plug is essential for maintaining the proper functioning of the engine.
   油嘴封堵器对于保持发动机正常运行至关重要。