In an electric power system, the following parameters often need measuring: voltage, current, power factor, power, reactive power and apparent power.
电力系统中常需测量电压、电流、功率因数、有功功率、无功功率和视在功率等参数。
In an electric power system, the following parameters often need measuring: voltage, current, power factor, power, reactive power and apparent power.
电力系统中常需测量电压、电流、功率因数、有功功率、无功功率和视在功率等参数。
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