扼流圈

例句：

1. 1. The circuit breaker protects the power grid from overloads.
   断路器保护电网免受过载。
2. 2. The engineer designed a new circuit breaker to improve efficiency.
   工程师设计了一种新型的断路器以提高效率。
3. 3. The circuit breaker is used to interrupt the flow of electricity when necessary.
   电路断路器在必要时用来中断电流流动。