mechanical oil valve

例句：

1. 1.The mechanical oil valve is responsible for controlling the flow of oil in the engine.
   机械油阀负责控制发动机中油的流动。
2. 2.The mechanical oil valve is essential for maintaining proper oil pressure in the engine.
   机械油阀对于保持发动机中的适当油压至关重要。
3. 3.The mechanical oil valve is designed to prevent oil from leaking out of the engine.
   机械油阀的设计是为了防止油从发动机中泄漏出来。