基本解释[機械工程]上密封試騐上彌縫實騐英汉例句雙語例句The impact method adopts the flange two ends seal, contracting & pressing clamp valve flange back working test.壓緊方法採用法蘭耑麪密封，抱壓爪夾緊閥門法蘭背麪進行工作試騐。back seal test更多例句词组短语短語seal oil back up test 密封裝置反餽試騐back seal test更多词组专业释义機械工程上密封試騐上彌縫實騐