基本解释[交通運輸工程]膜片閥彈簧座英汉例句雙語例句Mainly by the pilot valve seat, valve, diaphragm, spring, adjusting springs and other parts.導閥主要由閥座、閥瓣、膜片、彈簧、調節彈簧等零件組成。diaphragm valve spring seat更多例句专业释义交通運輸工程膜片閥彈簧座