self-polarizing relay

例句：

1. 1. The self-polarized relay is used to control the flow of electricity in a circuit.
   自极化继电器用于控制电路中电流的流动。
2. 2. In this circuit, the self-polarized relay is responsible for switching on and off the power supply.
   在这个电路中，自极化继电器负责开启和关闭电源供应。
3. 3. The self-polarized relay has been proven to be more reliable than traditional relays.
   自极化继电器已被证明比传统继电器更可靠。