Most antennas are made in the shape of a dish to collect and reflect the radio waves to the sub reflector, in the same way as a curved mirror focuses visible light to one point.
大多数天线被制成碟形，用以收集和反射无线电波至亚反射器，就像曲面镜将可见光聚焦于一点一样。
镜子能反光。
At daybreak each mirror array will turn sunward, and concentrated light will heat a Stirling engine held at the focal point, driving pistons and making electricity.
清晨，每一个镜面阵列自动转向太阳，将光通过反射集中到聚焦点加热斯特林发动机，驱动活塞，生产电力。
When you watch someone do something, the same parts in your brain light up as though you were doing it yourself (called mirror neurons).
当你在看某人做某事时，你大脑里相同的部分会被唤起，并认为是你自己在做(称为镜像神经元)。
They might discover that, as well as the squeaker, the toy had a button inside one tube which activated a light, a keypad that played musical notes, and an inverting mirror inside one of the tubes.
他们也许会发现，除了可以发出那个短促的响声外，在玩具的一个管子里还有一个电灯按钮，一个可以播放音乐的键区，以及安装在一个管道内的换向镜。
A huge mirror leaning against the wall opposite the Windows reflects light and adds the illusion of more space to the room.
靠在墙上的这面大镜子，刚好对着窗户，刚好能将光反射进来，也能让这个小屋看上去空间更大。
A tiny electromechanical switch under the bottom mirror can also lift it up, adjusting the spacing and preventing it from reflecting any light at all.
底层镜子下的一个微型机电开关也能抬高镜子，从而调节间距并防止镜子反射任何光。
If there were any inhabitants of the moon, they would see our earth reflecting the light of the sun, again like a huge mirror hung in the sky.
假定月球上也有居民，他们就会看到，地球也像一面高悬在天空中的巨型的镜子一样，反射太阳光到月球上。
There are two ways to spreading light :to be the candle or the mirror that reflect it !
传播光明的方法有两种：要么做一根蜡烛，要么做一面镜子去反射它的光芒！
Instead of letting it pass, the holes would reflect the light back toward the tip of the fibre optic cable, effectively turning the diaphragm into a mirror even as it still allowed water to pass.
不同于让光线透过，相反地，通过纤维光缆的一端，纳米孔会将光线反射回去，极有效地将振动膜变成一面镜子，即便水流可以通过。
The massive mirrors that collect and focus light are, like SALT's mirror, an array of smaller mirrors arranged on a perfectly formed curve.
凯克望远镜采集和集中光线的大型镜片和南非大望远镜类似，是由一组小镜片拼接成的曲面镜。
The most extreme type of shiny refiector—a mirror—will keep the light focused pretty much as narrowly in the refiection.
镜子是一种极端的光面反光板，它反射的光线几乎与入射光线一样窄。
The light then bounces off the bottom mirror, and then bounces again off the underside of the top mirror.
这些光随后经底层镜子反射，又再次经顶层镜子底部反射。
The focus of the light on the solar cell can also be fine-tuned by changing the air pressure within the balloon, and thus the curvature of the mirror.
藉由改变气球内的气压，就可以调整气球反射给太阳能电池的光线焦距，还有气球内的凹面镜弧度。
The focus of the light on the solar cell can also be fine-tuned by changing the air pressure within the balloon, and thus the curvature of the mirror.
借由改变气球内的气压，就可以调整气球反射给太阳能电池的光线焦距，还有气球内的凹面镜弧度。
And let me be Your mirror, To reflect Your Light the best.
我愿是您明镜，反映您光芒熠熠。
Newtonian and catadioptric telescopes have secondary (or diagonal) mirrors that obstruct a small percentage of light from the primary mirror.
牛顿望远镜和反射折射望远镜都有一个次级反射镜(或称斜反射镜)，它们阻挡了一部分主反射镜的发射光。
It was quiet and the mirror opposite him was reflecting the light into his eyes.He squinted, looking at the image of the door behind him.
一切都静悄悄的，他对面的镜子反射著阳光刺射著他的眼睛，他斜视了一下，从镜子中看到了自己身后的门。
Sunglint is caused by sunlight reflecting off of a water surface directly towards the observer—much as light reflects from a mirror.
太阳反辉是阳光被水面直接反射到观察者眼中而形成的——就像被镜子反射出的光一样。
Similarly on the inside a mirror can help push light around your room.
同样在室内一面镜子可以把光线推送到办公室各个角落。
However, having a mirror on stage can cause technical issues, such as reflecting light into the audience or into places never intended to be lit.
然而，在舞台上放置一面镜子也会带来一些技术问题，诸如反射管线到观众的眼里或者到一些不想有光的地方。
If you are on the ground floor but facing the wrong direction to get much natural light, you can use a strategically placed mirror outside to reflect more light in.
如果你在第一层但是面向一个接受自然光错误的方向，你可以使用一块适当放置的镜子把光线反射进来。
At another red light Marissa reached up and twisted the mirror toward her, glanced into it.
又是一个红灯，玛丽莎把后视镜扭向自己，看着镜中的自己。
Do it often: in the shower, in front of the mirror, in the car stopped at a red light.
频繁地练习吧：洗澡的时候练习，照镜子的时候练习，车停在路口等红灯的时候也可以张嘴说说。
The Thirty Meter Telescope's massive primary mirror has 492 segments, all perfectly aligned to form a 30-meter (98-foot) light-collecting surface.
30米望远镜的巨型主镜分割成了492块，完美地排列从而形成30米(98英尺)的集光面。
He found mirror-light odd and flat; he would squint in the paint, as if it hurt him.
他发觉镜光奇特而单一。作画时，他会眯着双眼，仿佛光线灼伤了他。
Spherical Aberration — causes light rays passing through a lens (or reflected from a mirror) at different distances from the optical center to come to focus at different points on the axis.
球差-使以不同孔径角穿过透镜(或从镜面上发射)的光线不能聚焦在轴上的同一点。
The dots of light you see on the wall are little reflections of sunlight bouncing off the mirror balls I have hanging in the window.
墙上这些小光点是我挂在窗户上的玻璃球反射的阳光。
The dots of light you see on the wall are little reflections of sunlight bouncing off the mirror balls I have hanging in the window.
墙上这些小光点是我挂在窗户上的玻璃球反射的阳光。
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