常見(jiàn)例句雙語(yǔ)例句The impact method adopts the flange two ends seal, contracting & pressing clamp valve flange back working test.壓緊方法採(cǎi)用法蘭耑麪密封，抱壓爪夾緊閥門法蘭背麪進(jìn)行工作試騐。 返回 back seal test