real partriəlpɑ:t短语⁶⁴⁵²⁷ 基本例句 实数部分 This paper presents a novel detecting method for harmonics and reactive current in single-phase active power filter based on calculation of the real part of the fundamental load current. 本文提出了一种单相有源电力滤波器谐波和无功电流检测的新方法—负荷电流基波有功分量法。 cnki