他演示了音频信号如何通过电缆传输而不失真。
He demonstrated how audio signals could be transmitted along cables without distortion.
该方法不仅能够对电压闪变信号进行不失真地包络检波，而且能够精确地检测电压闪变信号的时间和包络信号的频率分量及其幅度。
This method not only can achieve the distortionless envelope detection of voltage flicker, but also can detect the time, frequency and amplitude of the signal accurately.
声音信号可以通过电缆传送而不失真。
Audio signals can be transmitted along cables without distortion.
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