time frequency短语¹³¹⁶²⁰⁺³ 基本例句 时间频率 Wavelet analysis, also called wavelet transform, is a new analysis method with good time frequency localization characteristic, so it is suitable for fault analysis of power system. 小波分析或称小波变换是一种新的时频分析方法，它具有良好的时频局部化特性，适用于电力系统故障分析。 cnki