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从原材料、焊接材料、焊接工艺三方面分析了中部槽产生裂纹的原因 ,从而得到一种避免裂纹产生的方法及预防措施。
From the raw materials, welding materials, welding three aspects of the analysis of the reasons for the cracks in the central groove, resulting in a way to prevent cracks and preventive measures.