polarized relay contact

例句：

1. 1. The polarized relay is essential forthe operation of the circuit breaker.
   极化继电器对于断路器的运行至关重要。
2. 2. The polarized relay contacts are designed to ensure reliablecommunication between the two circuits.
   极化继电器触点的设计旨在确保两个电路之间的可靠通信。
3. 3. The polarized relay contacts areused in power systems to protect the equipmentfrom overload and short-circuitfaults.
   极化继电器触点在电力系统中用于保护设备免受过载和短路故障的影响。