double submerged arc weld的意思|示意
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双埋弧焊
double submerged arc weld的网络常见释义
双向埋弧焊 ... carbon arc weld 碳弧焊缝; 碳弧焊焊缝; 碳极弧焊; 炭极弧焊 double submerged arc weld 双向埋弧焊 electric arc weld 电弧焊 ...