adj.閉路式的。circuit, closed: 閉合電路closed circuit: 【無線電】閉路式(電視)。 blocking relay for closed circuit: 合閘閉鎖繼電器cc closed circuit: 閉合電路cctv closed circuit television: 閉路電視,工業(yè)電視下載手機詞典可隨時隨地查詞查翻譯