在频率域内，低噪声定位装置和相位平均技术可以提供振幅和假频谐振。
Low noise fixture and phase average technique provide the amplitude and spurious resonance in frequency domain.
汽车上使用的减振皮带轮，其内外圈间填充特殊橡胶，通过它可以降低皮带轮运转过程中的谐振振幅，减缓变速时的冲击。
Between the inner ring and outer ring of damping pulley, there is a layer of special rubber, which can reduce the amplitude of resonance and relax the impact caused by change of load.
能流密度不再随时间作简谐振荡，它的振幅构成一个高斯形状的包络。
The instantaneous energy density does not oscillate with time at the harmonic form, its amplitude forms and envelope with Gaussian shape.
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