... 调幅器 amplitude modulator 拍幅，拍频振幅，跳动振幅 amplitude of beat 基波振幅 amplitude of first harmonic ...
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... 调幅 amplitude modulation {= AM} 拍幅；差幅 amplitude of beat 振幅 amplitude of oscillation ...
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... 调幅 amplitude modulation {= AM} 拍幅；差幅 amplitude of beat 振幅 amplitude of oscillation ...
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The traditional methods for identifying beat wave and amplitude modulation wave are shortage. The main disadvantage of these methods is that they can 't correctly identify in some cases.
现有的拍波与调幅波的识别方法存在不足，本文提出了基于分形几何原理的辅助判别方法。
She filmed them, so that she could analyse the frequency with which they beat their tails as they swam and measure the amplitude of these powerful tail strokes .
诺尔博士拍下海豚游动的情况以便于她能分析在游动时它们拍打尾部的频率，同时能测出这些强有力的尾部拍击的振幅。
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