welding direct-current arc
台湾土木工程术语(中英对照16679个)之15832-16365 ... 对焊，平焊 Welding，butt 直流电弧焊接 Welding，direct-current arc 工地焊接 Welding，field ...
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welding direct-current arc
焊接直流电弧
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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It will produce magnetic field due to affection by direct current welding power supply during the welding of spiral submerged arc welded pipe. It will still remain residual magnetic.
螺旋埋弧焊钢管焊接过程中因直流焊接电源的影响会产生磁场，焊接结束后仍有剩磁存在。
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