The arc types that make the relay contact dynamic welding occur were introduced. It was pointed out that the closing short arc is direct reason of dynamic welding.
介绍了造成继电器触点动熔焊的电弧类型，指出闭合短电弧是动熔焊的直接原因。
Direct metal forming based on arc welding is a novel economical rapid prototyping process.
基于弧焊的直接金属成形是一种新型的低成本快速成形技术。
Direct metal forming based on plasma arc welding is a novel rapid prototyping process.
基于等离子弧焊的直接金属成形方法是一种新型的快速成形工艺。
It was pointed out that the closing short arc is direct reason of dynamic welding.
介绍了造成继电器触点动熔焊的电弧类型，指出闭合短电弧是动熔焊的直接原因。
Test and control of welding arc by the means of investigating and utilizing the information is the direct and effective way to study the complex mater-welding arc.
电弧中含有丰富的光谱信息，研究并利用这些信息进行焊接电弧的测控是研究焊接电弧这一复杂物质的最直接最有效的方法。
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。
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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