Median frequency  中值频率

Median frequency parameters  肌电图的中间频率变数

Median frequency sintering  中频烧结

median power flow  中值潮流

50Hz power frequency interference  50Hz工频干扰

active power-frequency control  有功-频率控制

Audio Frequency Power Amplifier  音频功率放大器

audio-frequency power amplifier  音频功率放大器; 音频功放

bidirectional power frequency communication  双向工频通信

characteristics of the power-frequency  维生素P; 功—频特性

constant voltage and constant frequency power  恒定电压恒定频率电源

Different Power Frequency  异频

different-frequency power combining  异频功率合成

double-frequency power supply  双频电源

Dual-frequency power divider  双频功率分配器

earthing power-frequency resistance calculation  接地工频电阻计算

EEG frequency power spectrum  脑电功率谱

Electric Power Frequency Communication  工频电力通信

electronic power frequency control system  电子电源频率调节装置