Also, a rough sinusoidal pattern can be seen in plotting average daily temperatures for each day of the year, although the graph may resemble an inverted cosine wave.

此外，一个粗略的正弦曲线图表可以在每天或每年的平均每日温度平面图表中看到，虽然这个图形可能和倒置的余弦波看起来很像。

youdao

Pattern differentiation can be performed in a coherent Optical processing system if a composite sinusoidal grating is used as a filter.

利用余弦型的复合光栅作为滤波器，在相干光处理系统中可对图像进行微商。

youdao