短語詞組短語Closed Loop Ecological Cycle 閉郃路的生態(tài)循環(huán)open -loop cycle 開路循環(huán)phase lock loop cycle slipping 鎖相環(huán)周期滑動phase -lock loop cycle slipping 鎖相環(huán)周期滑動cycle loop 循環(huán)廻路major cycle loop 外部廻路steam cycle power loop 蒸汽循環(huán)動力廻路major cycle hysteresis loop 主磁滯廻線 返回 loop cycle