基本解釋[交通運輸工程]密封性檢驗儀英漢例句雙語例句Testing progressing and methods for its main points were described especially according to the characteristic of helium-leak apparatus and structure of urea tower.確定了尿素合成塔的氦泄漏試驗方法,并對其要點進行了闡述;leak-testing apparatus更多例句專業(yè)釋義交通運輸工程密封性檢驗儀