It points out that occurring reason and prevention measures of ordinary weld visual shape problem to guide the production practice.
指出了焊缝外观形状常见问题的产生原因和防止措施，对生产实践有一定的指导意义。
It points out that occurring reason and prevention measures of ordinary weld visual shape problem to guide the production practice.
指出了焊缝外观形状常见问题的产生原因和防止措施，对生产实践有一定的指导意义。
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