frequency spectrum meaning in English

频率谱
频率图谱
频谱

Moreover, since the atoms are in random thermal motion the frequency spectrum will be altered by the doppler effect .
而且，由于原子是在作无规则热运动，多普勒效应也会使频谱发生改变。
Peaking in the frequency spectrum due to repetition of signals by multiple reflection is not confined to water layers .
多次反射波引起的信号重复在频谱中造成的峰值增多，并不仅仅局限于水层。
On - line measurement and frequency spectrum analysis
在线测量频谱分析
Frequency spectrum according to pulse partition modulation signal
基于脉冲间隔调制信号的频谱
Frequency spectra induced polarization instrument
频谱激电仪

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