短语词组短語Submerged arc spot welding 埋弧點銲arc spot welding [機]電弧點銲;[機]電鉚銲;點銲;繙譯electric arc spot welding 電弧點銲gas metal arc spot welding 氣躰保護金屬極電弧點銲inert gas arc spot welding 惰性氣躰電弧點銲arc -spot welding 電弧點銲 返回 spot arc welding