还有一种不同的软件是通过让电脑发射频率在200赫兹到600赫兹的声波，驱赶蚊子。
Still having a kind of different software is launch frequency to arrive in 200 hertz through letting computer the sound wave of 600 hertz, drive mosquito.
假定两个扬声器都发射恒定频率的纯正弦声波。
Suppose the speakers both emit a pure sinusoidal sound wave of constant frequency.
假定两个扬声器都发射恒定频率的纯正弦声波。
Suppose the speakers both emit a pure sinusoidal sound wave of constant frequency.
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