In the analysis of data with amplitude variation, low-frequency signals may appear as decomposed results, referred to hereafter as filtered low-frequency signals (FLSs).
在变振幅的数据分析中，低频信号可以反映在低频分析结果中，也可以体现在高频信号的振幅变化中。
In the analysis of data with amplitude variation, low-frequency signals may appear as decomposed results, referred to hereafter as filtered low-frequency signals (FLSs).
在变振幅的数据分析中，低频信号可以反映在低频分析结果中，也可以体现在高频信号的振幅变化中。
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