During the steady arc discharge course, liquid is heated up by the hot arc plasma, so a gas bubble is formed around the arc column and affords a gaseous environment for arc discharge.
在电弧稳定燃烧的过程中，液体被电弧的高温所加热，在弧柱周围形成气泡，为电弧提供了一个气体氛围的放电环境。
The tests show: there are steady arc burning, fully fused weld joints, good connection between base metal and weld joint, no air bubble, cracks etc.
试验过程电弧燃烧稳定，焊接接头充分熔透，母材与焊缝连接良好，未见气孔、裂纹等缺陷。
The tests show: there are steady arc burning, fully fused weld joints, good connection between base metal and weld joint, no air bubble, cracks etc.
试验过程电弧燃烧稳定，焊接接头充分熔透，母材与焊缝连接良好，未见气孔、裂纹等缺陷。
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