常见例句雙語例句The process of vacuum electron beam welding for rear-axle housing semiaxis of coach was introduced and the major problems in the process of welding was analysed.介紹了用真空電子束銲接大型客車後橋殼半軸的工藝方法，竝就銲接過程中存在的主要問題進行了分析。 返回 semiaxis