返送(系統(tǒng))電路, 監(jiān)聽線路監(jiān)聽電路，返送電路監(jiān)聽線路circuit: n. 1.(某一范圍的)周邊一圈；巡回，周游；巡回路線[ ...current foldback circuit: 過流保護電路studio foldback circuit: 播音室返送電路; 演播室返送電路foldback: 返送，監(jiān)聽; 返送系統(tǒng); 監(jiān)聽系統(tǒng)current, foldback: 折返電流下載手機詞典可隨時隨地查詞查翻譯
