Bar permanent magnet as the main part of the polarized magnetic system is widely used in polarized relay.

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。

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Bar permanent magnet as the main part of the polarized magnetic system is widely used in polarized relay.

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。

youdao