cut-off circuit

例句：

1. 1.The engineer cut off the power to the machine when it overheated.
   当机器过热时，工程师切断了电源。
2. 2. The faulty circuit caused the lights to flicker.
   这个故障的电路导致灯光闪烁。
3. 3. The technician had to cut off the power to the damaged circuit to prevent further damage.
   技术人员不得不切断损坏电路的电源以防止进一步损坏。