box type pinchcock的意思|示意

合式节流夹 ... 节流阀 butterfly governor; choke ale; choke valve; flow controlling gate; flow regulating valve; restricted valve; restriction; restrictive valve; restrictor valve; stop valve; stopvalve; th throttle valve; throttle ales; throttle flap; throttle governor; throttle valves; throttlevalve; throttled valve; throttling controller; throttling valve 合式节流夹 box type pinchcock 节流,节流阀 throttle ...