rotating pilot valve

例句：

1. 1. The new systemuses a rotating pilot valve to regulatethe flow of gases.
   新系统使用旋转式先导阀来调节气体流量。
2. 2. Therotating pilot valve is responsible for controllingthe pressure in the pipeline.
   旋转式先导阀负责控制管道中的压力。
3. 3. The rotatingpilot valve was designed to improve the efficiencyof the oil extraction process.
   旋转式先导阀被设计用来提高石油开采过程的效率。