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。
The daguerreotype was a unique image that reproduced what was in front of the camera lens in minute, unselective detail and could not be duplicated.
达盖尔银版是一种独特的图像，它可以再现相机镜头前微小的、无选择性的细节，而且是不可复制的。
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。
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。
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。”
Therefore we will use a more comprehensive lens to look at M&As in the thesis.
因此，我们将使用更全面的视角来研究论文中的并购。
In my mind, it was pointless having a "fixed" lens when there were so many good quality zoom lenses around.
在我心目中，我认为在有着众多高质量的变焦镜头时使用“定焦”镜头是无意义的事情。
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。
I slung one camera around my neck, put the other with the longer zoom lens in a backpack, and started pedaling.
我脖子上挂着一只照相机，把较长的变焦透镜放在一个背包里，并开始踩踏自行车。
Modulating the water pressure in the lens and below the sensors, makes it possible to produce a variety of magnifications.
通过调解镜头中和传感器底部的水压就能完成改变摄像头放大率的功能。
In another, they used a telephoto lens to take pictures of a set of keys on a cafe table from the roof of a university building.
在另一次演示中，他们站在一所大学的楼顶上，通过远摄镜头拍到了咖啡桌上的一串钥匙。
A cataract is a cloudy area in the lens of the eye that blocks the normal passage of light through the eye.
白内障是指眼内晶状体的浑浊区域阻碍了光线正常进入眼内。
In fact, according to Gampat, an 85mm lens is a vital part of anyone's camera bag.
据甘帕特介绍，事实上，85mm镜头是每位摄影人士的必备镜头。
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。
When you press the shutter release on the camera, a complex sequence of events occurs, including setting the aperture in the lens, flipping up the mirror of an SLR and a lot more.
实际上，当你按下快门时，一套复杂的程序开启，包括镜头内光圈的设置、一块单镜头反射镜的升起和其他更多的步骤。
Now a new design gives this curved camera a boost: the shape of the lens and of its sensor can be changed in synchrony, providing a 3.5x zoom.
如今，一种新的设计再次提升了这种曲面摄像头的性能：通过改变镜头和传感器的形状带来3.5倍的光学变焦。
Now you'll see a new lens icon in your toolbar.
现在你可以在工具栏里看到镜头图标。
What excites ophthalmologists most, and what every lens-making company wants to achieve, is an “accommodating” lens that can change its focal length in the same way that a natural lens does.
最让眼科学家兴奋的，而且每一家人工晶体制造公司都想获得的，是一种“善于适应新环境的”晶体，能像天然的晶体一样改变它的焦距。
Originally, inserting a new lens meant cutting a flap in the eyeball some 11mm across.
最初，植入一个新的晶体意味着在眼球上划开一个大约11毫米的口子。
So far, the group has only tested the diffusion properties of the lens in a lab dish.
迄今为止，该小组只是在实验室里测试了该镜片的性能，但是他们对未来充满希望。
Every few installments, I'll pull the lens back a bit to capture some aspect in the landscape of such sites.
在随后的每一期中，我都将镜头稍作后移，以捕获这些站点背后的一些方面。
To achieve an in-focus and magnified image, the researchers actuate the hydraulics to change the curvatures of the lens and detector in a coordinated manner.
为了获取一个内焦距放大的图像，研究人员开动液压装置，改变透镜曲率，以协调方式改变检测器。
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。
In some cases, however, a cataract may be removed without implanting an artificial lens.
但是在某些时候，医生只是单纯将白内障摘除而不植入人工晶体。
Do you have a particular application in mind that requires a specialist lens or other accessory?
在你脑海中，是否有需要特殊镜头和设备的特殊用途？
If you like taking photos of birds or other wildlife, or if you’re just a peeping Tom, you can get a superzoom camera with a built-in lens with an insane focal length.
如果你喜欢拍摄翱翔天际的飞禽和横闯森林的走兽，或者你想要偷拍对面的心动男孩，你可以选择具有内置镜头和大焦距的相机。
The focusing muscle (ciliary muscle), which controls the shape of the lens, is thus in a constant state of contraction.
这种控制晶体形状的调焦肌肉(睫状肌)，长期处于收缩状态。
A disc problem in the back, more heart trouble, a lens implant for catarcts.
背部椎间盘劳损，心脏病越发严重，眼睛因为白内障做了眼球晶体移植手术。
A disc problem in the back, more heart trouble, a lens implant for catarcts.
背部椎间盘劳损，心脏病越发严重，眼睛因为白内障做了眼球晶体移植手术。
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