- fundamental frequency
- 基: base; foundation
- 頻率: frequency; rate
- 時基頻率: time base frequency; time-base frequency
- 縱向光學(xué)基頻率: longitudinal fundamental optical frequency
- 基頻: base band; base frequency; baseband; basic frequency; frequency, fundamental; fundamental frequency; fundamental vibration; fundamentalfrequency; fundametal; group frequency
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