Basically, each of these little squares has 6,000 retroreflectors per square centimeter.

基本上，个小方方厘米有 6000 个反射器。

And that is a basic 101 of how a retroreflector works.

这就是反射器工作的基本原理。

So these are all basically full of retroreflectors, right?

所以这些基本上都是反射器，对吗？

But 3M took that principle even further with a full-cube retroreflector.

但是 3M 将这个原理一步发展，创造全立方体反射器。

Although, I suppose the retroreflector left on the moon by Neil Armstrong does qualify as a shiny object.

尽管我可以确定尼尔·阿姆斯特朗留在月球上的回复反射器的确亮晶晶的标准。

To combat this rain visibility problem, 3M actually developed these elements, which are retroreflectors that have different refractive indices.

为解决雨天能见度的问题，3M 公司实际上开发这些元件，它们是具有不同折射率的逆反射器。

So where the retroreflectors act ideally under dry conditions, as soon as water is on top of them, their refractive index is lowered by a ratio of 1.33.

因此，当反射器在干燥条件下理想工作时，一旦水覆盖在其上，它们的折射率就会降低到 1.33 的比例。