·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
youdao
应用推荐
模块上移
模块下移
不移动