open arc [冶] 开弧 ; 开启式弧 ; 开敞电弧

open arc welding 明弧焊 ; 明弧焊接 ; 明弧烧焊

open arc lamp 敞式弧光灯 ; 开敞弧光灯

open arc furnace 开弧炉

open carbon arc lamp 室外碳极弧灯

open-circuit arc 断路电弧 ; 开路电弧

open-top arc furnace 顶部敞口电弧炉

open-arc furnace [冶] 明弧炉

arc lamp open carbon 敞露式碳极弧灯