余弦

Hamonic vibrations are said to be "simple" if there is only one frequency as represented diagrammatically by a sine cosine wave of displacement against time.

调和振动据说是&简单&如果只有一个频率为代表的位移与时间正弦余弦波图解。

By using Wavelet Transform and the Discrete Cosine Transform,the effective feature extractions of different characters are got.

利用小波变换和离散余弦变换，提取不同字符的有效特征。

And there exists optimal values of xd and δ,and SR of the corresponding M×N ChG beams reaches its maximum.

因此，适当选取M、xd和δ可以降低湍流对双曲余弦高斯列阵光束远场光束质量的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。