Frequency-Spectrum analysis 基本例句 频谱分析 The random forces on the mole plough were studied by the spectral analysis method.采用频谱分析方法研究了鼠道犁土壤工作部件的随机受力。 The suggestions on the further research of the frequency spectrum analysis are provided.就频谱分析的进一步研究提出了建议。