基本解釋瓣閥同根派生 clapper valve相關詞英漢例句Staniless steel sanitary welded clapper valve 不鏽鋼衛(wèi)生級銲接式加閥Have you turned off the water valve? 你關掉水閥了嗎？We need an eye bolt to fit this valve. 我們需要一個有眼螺栓來固定這個閥門。He soon detected the faulty valve. 他很快查到了出毛病的閥門。If not damaged gently close the clapper. 如果沒有損壞，則輕輕地關閉閥瓣。clapper valve更多例句詞組短語短語sprinkler alarm valve clapper 噴水滅火系統(tǒng)報警閥閥瓣clapper valve更多詞組專業(yè)釋義機械工程瓣閥