短语词组短语Submerged arc spot welding 埋弧点焊arc spot welding [机]电弧点焊;[机]电铆焊;点焊;翻译electric arc spot welding 电弧点焊gas metal arc spot welding 气体保护金属极电弧点焊inert gas arc spot welding 惰性气体电弧点焊arc -spot welding 电弧点焊 返回 spot arc welding