It is suggested that high resistance grounded method and automation arc blow-out coil parallel resistance grounded method should be used for power distribution system.

建议选择高阻接地方式及自动调谐消弧线圈并联电阻接地方式。

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The surface tension, arc blow force and electromagnetic force work positive to improve the penetration, and the buoyancy can increase the width in the middle of weld pool.

表面张力、电弧吹力和电磁搅拌力均有利于获得较大的熔深，浮力有利于增加焊缝中间部位的宽度。

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Plasma arc cutting is a physical process which utilize high temperature to heat materials and high speed flow to blow melted metal, cutting quality is directly influenced by arc power and arc force.

等离子体弧切割是通过高温等离子体弧将工件弧柱部分的材料熔化并利用高速离子流将切渣吹除的物理过程，弧柱的功率和作用力将直接影响到切口质量。

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