switched circuit

例句：

1. 1. The newswitchboard has a switched-over circuit that allows for easy communication between different departments.
   新交换机具有一个切换式电路，可以方便不同部门之间的通信。
2. 2.The technician quickly switched the switched-over circuit to restore power to the entire building.
   技术员迅速切换了切换式电路，恢复了整个建筑的电力。
3. 3. The engineer had to switch the switched-gear circuit to prevent further damage to the equipment.
   工程师不得不切换开关式齿轮电路，以防止设备进一步损坏。