Here is a simple annotated multiplot that plots the sine, cosine, and their respective reciprocals.
下面是简单说明的multiplot，它绘制正弦、余弦及其各自倒数的曲线图。
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If a proper non - linear change of the instantaneous frequency is realized, we can get a frequency spectrum whose input is the mean of the reciprocals of bed attenuation coefficients.