They are creating these wave fronts.

他们正在创造这些波前。

That's like a wave front and it takes a while for that wave to go ashore, which is learning.

那就像一个波前，这个波需要一段间才能，就是习。

Now you can see as the wave fronts hit the back it is kind of varying.

现在你可以看到，当波阵面撞击到后方，它会发生一些变化。

Now we have two wave fronts and as those wave fronts interact what we get is interference.

现在我们有两个波前，当这些波前相互作用，就会产生干涉。

You get what is called a circular wave front.

你会得到所谓的圆形波前。

It is on interference patterns which will always occur if we have a number, 2 or more, wave fronts that are interacting.

如果我们有多个（2 个或更多）相互作用的波前，则总是会发生干涉图案。

And what will happen is as those wave fronts interact you will have these troughs, in other words areas where waves are destructive interference.

当这些波阵面相互作用， 就会出现这些波谷，换句话说， 就是波发生相消干涉的区域。

Two wave fronts of electromagnetic radiation, one from the supernova and one from the ET, are now spreading through space at the speed of light.

两束电磁辐射的波前，一束来自超新星， 另一束来自外星智能，现在正以光速在太空中扩散。

And so did you learn to create a wave front diagram to demonstrate why as a source approaches you the wave frequency increases?

那么，您是否会了创建波前图来演示为什么当声源接近您，波频率会增加？

Far away from the antennas, the waves join to form a wave front that is a planar wave, kind of like ocean waves crashing on a shoreline.

远离天线的地方， 这些波会汇聚形成一个平面波波前，有点像海浪拍打在海线。

They can even send waves from all directions, so they form circular wave fronts and then all the wave energy is channeled into one spot they call the bullseye.

它们甚至可以从各个方向发送波浪，因此它们形成圆形波阵面， 然后所有波浪能量都被引导到一个被它们称为“靶心” 的点。

And while that is perhaps interesting, the wave front of other endocrine and molecular factors that set in motion by proper resistance training to me is the most interesting and important aspect.

而尽管这一点或许很有趣，但由适当的阻力训练触发的其他内分泌和分子因素的变化对我来说是最有趣和最重要的方面。

So if we are looking at two-dimensions, in the simulation what I have got is water being dropped which is creating these wave fronts that move out from the dropped water.

因此，若我们观察二维情况，在模拟中，我所展示的是水滴落入水中， 从而形成这些波前， 它们从落水点向外扩散。