When welding be sure to wear hood and barricade the working area.
烧焊时必须戴上面罩并将工作区域围起来。
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.
客车顶盖蒙皮自动点焊设备开发的成功，解决了客车顶盖蒙皮生产工艺落后的问题。
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