基本解釋[機(jī)械工程]對(duì)銲連接閥對(duì)於銲毗連閥詞組短語(yǔ)短語(yǔ)Buttwelding U valves 對(duì)銲連接閥Buttwelding E valves 對(duì)銲連接閥Imported Buttwelding valves 進(jìn)口對(duì)銲連接閥buttwelding valves更多詞組專業(yè)釋義機(jī)械工程對(duì)銲連接閥對(duì)於銲毗連閥