two-stage valve

valve... ... two-sport valve 二通阀 two-stage valve 两级阀 two-way valve 双通阀; 双通活门; 两通阀; 二路阀; 二通阀 ...

阀门英语大全 ... two-stage valve 二级阀 two-stage emergency valve 紧急二段阀 ...

...ve)和Y型阀(Y-inline Valve)及2阶段阀(Two-Stage Valve)。