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电表脉冲是什么意思_家居日记
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电表脉冲是什么意思

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电表脉冲是什么意思 电表脉冲是指电表计量参数输出。电表会安装脉冲装置，因为电表是以脉冲数为计量单位的。通常我们将作用时间短的电压、电流叫做脉冲信号，脉冲信号是有


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