- bi ectrum
- bispectrum
- 双: two; twin; both; dual
- 频谱: frequency spectrum; frequenc ...
- 双频谱分析: bi ectral analysis; bispectral analysis
- 双频: double frequency; dual band; dual frequency; dual-band
- 频谱: frequency spectrum; frequency content; spectrum; power-density spectrum; power spectrum; [系统] spectral density◇频谱测定法 spectrometry; 频谱分析 spectrum analysis; frequency analysis; 频谱仪 frequency spectrograph
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