This system provides a sinusoidal and other shape load traces using normal compressed air controlled electronically and is an assembly of commercially available components.
这种系统由电子控制的压缩空气产生正弦和其他形式的荷载，并用很易购得的部件装配而成。
A sinusoidal waveform provides the structural silhouette shape across the channel.
正弦波形赋予了通过水道的结构轮廓的形状。
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。
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