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单相双相三相什么意思_家居日记
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单相双相三相什么意思

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单相双相三相什么意思 1、单相也就是说是三相当中任意一根的相线和一根零线，也就是火线和零线，并且电压值达到220伏，频率是50赫兹。二相就是取三相当中的任意两相


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