So here we have ripples on a pond;

现在来看看池塘里的涟漪
you've all seen that kind of thing with a little bit of rain falling.

下小雨的时候就会有这东西出现
And so suppose you had two spots that are generating ripples,

假设有两滴雨点落下形成了波纹
two electrons let's say,

我们可以把它们看做两个电子
and they give off circular waves here,

它们发出圈状的波纹
in two dimensions, and they interfere with one another.

这两个不同位置的波纹互相干扰
But you can see a pattern is emerging,

我们可以发现一个特殊的规律
and when you're very, very far away from these,

当你离这两个电子足够远时
compared to the distance between the electrons,

这个远是相对于两电子间的距离而言
as indeed you are in these samples we're talking about

就像实际情况中我们要检测的样本
where you have an infinitesimal crystal

样本晶体是极其小的
and the detector plateis a substantial distance away--

相比之下信号接收盘与之离得很远