1)pressure control pilot valve,压力控制先导阀2)pilot-operated pressure control valve,先导式压力控制阀3)pcp flapper valve,压力控制先导装置瓣阀4)The twostep pressure valve,先导压力阀5)pilot valve pressure,先导阀压力6)pilot control valve,先导控制阀
用法和例句
Introducing the optimal structure mode of The twostep pressure valve,its veracity and its stability are best of all.
