每个钢琴音由许 多谐波频率(harmonic frequency)组成，这些谐波频率为基波频率(fundamental frequency) 的倍数，也就是说，完整的频谱应包含许多尖峰。
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次谐波频率 subharmonic frequency ; subfrequency
谐波频率转换器 [电子] harmonic frequency converter
谐波频率特性 harmonic frequency characteristic
谐波频率响应 harmonic frequency response
分谐波频率 subfrequency
耦合谐波频率估计 frequency estimation of coupled harmomics
谐波频率合成器 Harmonic frequency synthesizer
总谐波失真与频率 Total Harmonic Distortion vs Frequency
谐波集(HS)频率 HS frequencies
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谐波频率在电网中是造成电能质量问题的常见原因。
Harmonic frequencies in the power grid are a frequent cause of power quality problems.
晶体遵循谐波频率，可用于与仪器，看起来像音叉。
Crystals follow harmonic frequencies and could be used with an instrument that looks like a tuning fork.
目的提取直升机声信号谐波频率作为特征用以识别直升机。
Aim To extract harmonic frequencies of helicopter acoustic signal as features for helicopter identification.
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