Let's now examine the simplest wave form where the profile is a sine or cosine curve.

现在让我们来考察最简单的波形，它的剖面图是正弦或余弦曲线。

youdao

Let's now examine the simplest wave form where the profile is a sine or cosine curve.

现在让我们来考察最简单的波形，它的剖面图是正弦或余弦曲线。

youdao