vacuum circuit breaker

例句：

1. 1.The vacuum circuit breaker is used to switch off the power when there is a fault in the electrical system.
   真空断路器用于在电气系统出现故障时切断电源。
2. 2. The engineer used the vacuum circuit breaker to quickly disconnect the power supply to the building.
   工程师使用真空断路器迅速断开了建筑物的电源供应。
3. 3.The vacuum circuit breaker was designed to prevent fires and explosions in industrial settings.
   真空断路器被设计用来防止工业环境中的火灾和爆炸。