... arc cracking 电弧裂化法 arc crater 电弧陷口 arc current 电弧[焊接]电流area-balanced 等量面积电流, 与直流成分对称的电流 ...
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arc crater crack 弧坑裂纹
crater carbon arc lamp 陷口式碳弧灯
crater arc [天] 环形山弧
arc lamp crater carbon 陷口式碳极弧灯
crater r carbon arc lamp 陷口式碳弧灯
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