常見例句雙語例句The success of developing self-automatic welding equipment for coach roof-hood has solved the problem that the production technology of coach roof-hood is backward.客車頂蓋蒙皮自動點焊設備開發(fā)的成功,解決了客車頂蓋蒙皮生產(chǎn)工藝落后的問題。 返回 backward welding