A lens would magnify the picture so it would be like looking at a large TV screen.
透镜会把图像放大，这样就会像看大电视屏幕。
It has a lens system to focus light onto the film at the back of the camera.
它的镜片系统可以将光线聚焦到相机后部的胶片上。
Its lens, no bigger than a small raindrop, magnified objects hundreds of times.
它的镜头大不过小雨滴，却能使物体放大数百倍。
This is a traditional fuel rod lens that glows underwater.
这是一个传统的水下发光的燃料棒镜头。
To prep the eye to receive the tooth and lens, the doctors placed a graft over the eye to promote moisture.
为了使眼睛做好接收牙齿和晶状体的准备，医生在眼睛上方放置一片移植物以增加水分。
We need a filter or a lens to talk about then what is ultimately in control.
我们需要一个过滤器或一个镜头来谈论最终控制的是什么。
They're lenses because they're convex vessels, and when they're full of water, they act as a lens and you see the horizon in them, upside down and backwards.
它们是透镜，因为它们是凸面容器，当它们盛满水后，它们可作为透镜使用，你可以看到它们里面上下颠倒的地平线。
Each cluster includes a pair of eyes with a sophisticated lens, retina, iris and cornea. Scientists aren't sure how they process what they see.
每组包括一对拥有复杂晶状体、视网膜、虹膜和角膜的眼睛。科学家们还不确定它们如何处理它们看到的东西。
Water surges from the cells on the inside of the leaf to those on the outside, causing the leaf to rapidly flip in shape from convex to concave, like a soft contact lens.
水从叶子内部的细胞涌向外面的细胞，导致叶子迅速地从凸向凹翻转，就像一片柔软的隐形眼镜。
The curved glass had a magnifying effect, like a lens.
弯曲的玻璃像透镜一样具有放大作用。
Our new sensor is smaller and smarter, it can be fixed to a lens and keep direct contact with tears.
我们的新感应器更小、更智能，可以固定在隐形眼镜上，与眼泪保持直接接触。
A new contact lens has been developed by scientists from America, Britain and China.
美国、英国和中国的科学家已经研制出一种新型隐形眼镜。
When introducing the new contact lens, Dr. Guo Shiqi, a researcher at Harvard, said, "In the past, the sensor was put between the layers of the lens."
介绍这种新型隐形眼镜时，哈佛大学研究员郭士奇博士说：“过去，感应器是放在隐形眼镜层之间的。”
Earlier, a California company developed another kind of contact lens using LED technology.
早些时候，加利福尼亚一家公司开发了另一种使用 LED 技术的隐形眼镜。
Here is what I imagine you do have, which I will possess, however briefly, from the safe distance of an observer behind a lens.
这就是我猜想你们所拥有的，从镜头后的旁观者这个安全距离上，我要将其占据，虽然只是暂时的。
Joining the fray is "the Consuming Instinct" by Gad Saad, which considers human behaviour through a lens of biology and natural selection.
迦德•萨阿德所著的《消费的本能》也加入了争论，这本书透过生物学和自然选择的透镜来看待人类行为。
In this method, when one star passes in front of another, as seen from Earth, the nearer star's gravity ACTS like a lens, bending and magnifying the more distant star's light.
当天文学家用这种方法从地球上观测到一颗恒星在另一颗恒星前“走过”时，距地球较近的这颗恒星的重力就如同一个镜头，将较远的那颗恒星的光弯曲并放大。
Light painting, also known as light drawing or light graffiti, can produce some truly stunning results but don't be fooled, it isn't as simple as just waving a little light in front of a lens.
光线喷涂，也称之为光线绘画或光线涂鸦，确实能够产生一些令人称奇的结果，但是不要被其表面蒙住了，它可不是仅仅在镜头前挥动一些光线那么简单。
Some might say it's a lens flare.
也许有人说这只是镜头的反光。
Chromatic Aberration — usually associated with objective lenses of refractor telescopes, is the failure of a lens to bring light of different wavelengths (colors) to a common focus.
色差-经常在折射望远镜的物镜上出现，是因为透镜不能把不同波长(颜色)的光聚焦到一点而形成的。
Smaller sensors 'crop' the scene and make a lens appear to have a longer focal length.
更小感光元件会使得镜头产生更长焦距的效果。
The M8, the first digital member of the M family, was released in 2006. The asking price — $4, 800, without a lens — was enough to make it a major investment for any photographer.
2006年，第一个数码家族成员M8上市了，售价为4800美元，且不含镜头，这对任何摄影者来说都是笔不小的开支。
The camera is about as wide as a nickel and has two main parts, a lens and a sensor array.
这个摄像头大小与5美分硬币相近，由镜头和传感器阵列两个主要部分组成。
When the sun's rays passed through a lens in one of the walls, Leonardo's 3D model would have been projected on to the material, creating a permanent image.
当阳光穿过墙上的一个透镜头时，达·芬奇的三维头像就会被投射在织物上面，制成一个永久性的头像面容。
They're lenses because they're convex vessels, and when they're full of water they act as a lens and you see the horizon in them, upside down and backwards.
说它们是镜头，因为它们是凸面的容器。盛满水后，它们可作为镜头使用，你可以通过它们看到颠倒过来的地平线。
Be careful when picking out a lens because there are plenty of add-ons you might or might not want.
挑选镜片的时候要小心，因为许多镜片有一些附加功能，也许是你需要的，也许你根本用不上。
Digital SLRs with a lens focal length of 300 to 400mm are recommended, but you can get away with a decent compact with a 10x zoom.
推荐使用带有300 - 400毫米镜头的数码单反相机，但如果有一架有10倍变焦镜头，性能良好的小型相机也可以。
If a large object passes in front of a more distant background star, it may act as a lens, bending and distorting the light of that star so that it may appear to brighten significantly.
如果一个体积足够大的星体从一个距离很远的恒星前面经过，那么会产生透镜效果，使那个恒星的光线产生弯曲或变形，这样就能很清楚的看到这个星体。
A typical camera works by recording where light strikes the focal plane-the area onto which rays passing through a lens are captured.
一个典型的摄像机以记录光照射的焦平面上的方式工作——通过镜头被捕获的光线区域。
A typical camera works by recording where light strikes the focal plane-the area onto which rays passing through a lens are captured.
一个典型的摄像机以记录光照射的焦平面上的方式工作——通过镜头被捕获的光线区域。
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