条形永久磁铁广泛应用于极化继电器中，是构成极化磁系统的主要组成部分。
Bar permanent magnet as the main part of the polarized magnetic system is widely used in polarized relay.
其设计的基础上，而不是创建继电器特性的线圈和磁铁的模拟电子设备的使用。
Their design is based on the use of analogue electronic devices instead of coils and magnets to create the relay characteristic.
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