automatic regulating valve

例句：

1. 1. The automatic regulating valve isused to control the flow of oil inthe engine.
   自动调节阀用于控制发动机中油的流动。
2. 2. The automatic regulatingvalve is designed to prevent overheatingof the engine.
   自动调节阀设计用来防止发动机过热。
3. 3. The automatic regulating valveis essential for maintaining proper engine performance.
   自动调节阀对于保持发动机正常运行至关重要。