焊接熔池 melten weld pool ; Welding tub

熔池焊 molten-bath arc welding

蓄电池式焊机 battery welder ; storage battery welding machine ; portable spot welder

蓄电池点焊机 battery spot welding machine

焊接熔池保护 weld shielding

电池电极焊接机 Battery Electro Welder

熔池电弧焊 molten bath arc welding

焊接池 welding pool

烧焊熔池 welding pool ; welding puddle