Those telescopes that do not employ reflection use refraction.

那些不用反射的望用的是折射。

Is it a) dispersion, b) reflection, or c) refraction?

是 A. 散射，B.反射，还是 C. 折射？

Slowing a wave changes its direction, a process called refraction.

放慢光波改方向，这个过程被称为折射。

This refraction has a couple of interesting results.

这种折射可以导致几个有趣的结果。

The problem here is that the water actually changes the refraction of light.

问题在于，水实际改光的折射。

Now we're going to talk about refraction of light.

今天我们要讲的是光线的折射。

Wei Wenbin, a senior ophthalmologist at Beijing Tongren Hospital, told a recent news conference that laser eye surgeries are recommended for people age 18 and above to ensure stable refraction, but rigorous pre-operation evaluations should be carried out.

北京同仁医院资深眼科专家魏文斌在最近的新闻发布会表示，建议18岁及以的人接受近视激光手术，确保稳定的屈光度，但应进行严格的术前评估。

Tomorrow, the 21st, was the day of the equinox; the sun would disappear below the horizon for six months not counting refraction, and after its disappearance the long polar night would begin.

明天21日是春分，析光作用映出的阳光不算，太阳以后就要没人水平线下，有六个月不能出来，太阳不见，极圈的长夜时期就开始。

Those telescopes that do not employ reflection use refraction. They have a system of lenses, an idea first used to look at the stars by Galileo.

那些不用反射的望用的是折射。他们有透系统。用透系统的想法最早是伽略用来观测星星的。

Sometimes, those refraction reflectors are in the farthest outer layer of the beetle's body, or they can be buried a little bit deeper inside.

有时候，这些折射反射器在甲虫身体最的外层，或者它们可能埋得更深一点。

Hmmm, well, I'm not a scientist, so I'll have a guess as c) refraction.

我不是科学家，所以我要猜 C. 折射。

At 11: 45 the sun, by then seen only by refraction, looked like a golden disk, dispersing its last rays over this deserted continent and down to these seas not yet plowed by the ships of man.

正午差一刻，单从折光作用看，太阳像金盘一样现出，它对这从没有人迹来过的海面，把它的最后光芒散在荒凉无人的大陆。

Technically, this changes the index of refraction, but in plain English that means blue light is no longer bent the right way.

从技术讲，这会改折射率，但用简单来说，这意味着蓝光不再以正确的方式弯曲。

And when light hits these layers, it bends through a process called refraction.

当光线照射到这些层时，它会通过一个叫做折射的过程弯曲。

But to see if this was true for refraction would be difficult.

但是要确定折射是否如此会很困难。

That is a special crystal that has two different indices of refraction.

这是一种特殊晶体，具有两种不同的折射率。

And so index of refraction, remember is related to the velocity.

记住，折射率与速度有关。

I actually think it's a refraction of reality.

实际，我认为它是现实的折射。

And in fact, many ships in the area of Titanic's crash talked about abnormal refraction.

事实，泰坦尼克号撞船地点附近的许多船只都提到过异常折射现象。

The horse messenger, uncomfortably seated on a form after taking that refraction, had dropped into a doze when a loud murmur and a rapid tide of people setting up the stairs that led to the court carried him along with them Jerry!

骑马的信使在喝那杯酒后不适地坐在长凳，正昏昏欲睡， 突然一阵喧哗和迅速涌向法庭楼梯的人群将他卷进去。 杰里！