... 金属极电弧熔焊 metalarc welding ; arc welding 钨极电弧炉 tungsten electrode arc furnace 金属极电弧 metal arc ...
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tungsten n electrode arc furnace 钨极电弧炉
tungsten tipped electrode arc furnace 钨尖电极电弧炉
tungsten-tipped-electrode arc furnace 钨尖电极电弧炉
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