First, note the direction that the wave is traveling, in the x-direction.

注意向量在 -x 中的行进方向。

And so these traveling waves are going back and forth and back and forth.

因此，这些行波来回往复，不断运动。

Today, you learned about traveling waves, and how their frequency, wavelength, and speed are all connected.

今天，您了解了行波，以及它们的频率、波长和速度如何相互关联。

And as we've talked about, sound waves are nothing but traveling pressure waves through the air.

正如我们所论的，声波只不过是通过空气传播的压力波。

That is going to create these traveling waves that move somewhere else.

这将产生行波，移动到其他地方。

And also two-dimensional traveling wave interference.

还包括二维行波干。

And so let's look at a traveling wave.

那么，让我们来看一下行波。

But you might say that it does have special powers, because it'll demonstrate for us the physics of traveling waves.

但你可以说它具有非凡的力量， 因为它将向我们解释行波的。

But you might say that it does have special powers, because it’ll demonstrate for us the physics of traveling waves.

但你可能会说它确实有特殊的能力，因为它会为我们展示行波的特性。

And so the traveling waves are created on the left and then they just keep going and going.

因此，行波在左侧生成后，它们会持续不断地向前移动。

You should understand how we could get one dimensional interference between traveling waves.

你应该解我们如何能在行波之间产生一维干。

You might remember when we talked about traveling waves that a wave's speed is equal to its frequency times its wavelength.

你可能还记得当我们谈到行波时，波的速度等于它的频率乘以波长。

And so did you learn to analyze or evaluate interactions at one-dimension, at two-dimensions as waves, traveling waves interact with each other?

你是否会了分析或评估在一维和二维空间中，作为波的行波之间的相互作用呢？

You will have these little nodes and antinodes, but they are made up of traveling waves interfering with each other, bouncing back and forth.

你会看到这些小小的波节和波腹，它们是由行波相互干、来回反弹形成的。

Now they actually are and what is happening is the traveling waves are bouncing back and forth and due to interference they are creating these stand still or standing waves.

实际上，行波正在来回反弹，由于干作用，它们形成了这些静止或称驻波。