短語詞組短語back panel connection 板后接線ring back tone connection 回鈴音連接BACK PANEL CONNECTION DETAIL 后背面板連接明細(xì)emergency head back up connection 自動(dòng)連接器助接器back connection type instrument 背面連接式儀器Back Connection Front Flange 軸向帶邊back connection detail 背部接線back connection type 背面聯(lián)結(jié)式;背面連接式gauge with back connection 軸向壓力表 返回 back connection