正常激磁
For the burn-out of normal excitation coil of contactor, it is proposed to depress its working voltage after startup.
对常励磁接触器线圈发热烧毁问题,采取在其启动后降低线圈工作电压的方法减少发热;
create new way of resources protect with cross of agriculture and forest by absorbing normal excitation mechanism
引入人性化激励约束机制开创农林交错地带资源保护新途径
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