基本解释[機械工程]固定式球閥英汉例句雙語例句The installation 1, Qudiao flange end of the Flange-connection fixed ball valve protective cover on both sides, in the valve fully open state to wash clean.安裝1、取掉法蘭耑兩邊的保護蓋,在閥完全打開的狀態下進行沖洗清潔。fixed ball-valve更多例句词组短语短語O -fixed flange ball valve pneumatic 法蘭式氣動型固定球閥fixed ball-valve更多词组专业释义機械工程固定式球閥