treadle operated valve

例句：

1. 1.The treadle operated valve is used to control the flow of oil in the engine.
   脚踏式操作阀用于控制发动机中油的流动。
2. 2. The treadle operated valve was designed to improve efficiency and reduce maintenance costs.
   脚踏式操作阀的设计旨在提高效率和减少维护成本。
3. 3. The treadle operated valve is a critical component of the fuel system in modern cars.
   脚踏式操作阀是现代汽车燃料系统中的关键部件。