多相输电是提高输送功率密度的重要方法。

High phase order power transmission is an important method to increase the power density transmitted.

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根据往复泵的循环指示图建立了计算多相流往复泵有效功率的新方法。

A new calculating formula of the effective power of the reciprocating pump of multiphase flow is set up by the cyclic indicating figure of the pump.

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基于小波功率分频带算法的原理，采用IIR小波多相滤波器组对西安化工厂的一组实际数据进行有效值、功率、无功功率的测量。

IIR polyphase wavelet-based RMS, real power and reactive measurement algorithm is used to measure group of actual data from Xi 'an Chemical Plant.

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