基本解釋[機(jī)械工程]球閥英漢例句雙語例句The superiority and structure characteristics of Polyethylene(PE) glove valve compared with metallic valve, and its shortcoming and the improvement were discussed.論述了PE球閥的優(yōu)點(diǎn)及結(jié)構(gòu)特點(diǎn)，并對(duì)其不足之處進(jìn)行了改進(jìn)。glove valve更多例句詞組短語短語polyethylene glove valve 聚乙烯球閥glove valve更多詞組專業(yè)釋義機(jī)械工程球閥