基本解釋蝶形節(jié)流閥英漢例句雙語例句Butterfly valve through the valve shaft rotation to drive the rotation of a disc-shaped disc, to open and close a valve, cut off from the main pipe and throttle with.進(jìn)口蝶閥是指通過閥軸旋轉(zhuǎn)來帶動一個圓盤形的蝶板的轉(zhuǎn)動,達(dá)到開啟與關(guān)閉的一種閥門,在管道上主要起切斷和節(jié)流用。butterfly throttle valve更多例句詞組短語短語throttle butterfly valve 節(jié)流蝶閥butterfly throttle valve更多詞組專業(yè)釋義機械工程蝶形節(jié)流閥蝶形節(jié)省閥