短语词组短語bus -bars 母線排transfer bus -bars 切換母線ring bus -bars 環形母線bus s bars 母線enclosed bus -bars 閉鎖母線substation bus bars 變電所母線Cell bus bars 電解母線middle voltage bus bars 中壓母線bus bars and connections 母線和連接;滙流排和連接 返回 bus bars