名词
中文翻译：时间变化的振幅
同义词：
['time-varying signal', 'time-varying signal strength']
例句：
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1. The amplitude of the wave changes with the speed of the waves.
波的振幅随着波速的变化而变化。
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2.The amplitude of the signal is measured in decibels.
信号的振幅以分贝为单位进行测量。
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3. The amplitude of the signal can be affected by various factors.
信号的振幅可能会受到各种因素的影响。