三相电力 meaning in Chinese

three phase power
three-phase power

Three phase power transmission
三相电力传输
Three - phase power transmission
三相电力传输
Identification by hour numbers of the phase conductors of 3 - phase electric systems
三相电力系统各相导线的钟点序数识别标志
Both ip - iq approach and id - iq approach need low pass filters , as a result the accuracy of harmonic current detection is influenced by frequency drift . moreover , they both can only be used in three - phase power systems
I _ p - i _ q法和i _ d - i _ q法都需要低通滤波器，因而会使谐波电流检测精度受到电源频率漂移的影响，而且这两种方法仅适用于三相电力系统。