随着我们年龄的增长，眼睛的晶状体变厚，因此对光线的折射也会发生变化。
As we age, the lenses of the eyes thicken, and thus refract light differently.
光感受器是通过发出化学信号来对光作出反应的细胞。
Photoreceptors are cells that respond to light by sending out a chemical signal.
研究小组发现这些鱼的水平细胞对光线的敏感度比它们的同伴锥细胞弱数千倍。
The team found that these fish horizontal cells are thousands of times less light sensitive than their partner cone cells.
例如，经过训练的观察者主要通过对光谱中出现的简单线条的精确分析来获取关于恒星的大量信息。
For example, trained observers obtain a very large amount of information about a star mainly from the accurate analysis of the simple lines that appear in a spectrum.
这些转变都对光学增益有贡献。
如果睡觉时你对光敏感，挂上厚窗帘或用眼罩。
If you're sensitive to light while sleeping, get thick drapes to cover your Windows or use an eye cover.
“植被指数”是对光合作用强度的反映。
这种前所未有的对光线的描绘对他们来说好似侮辱。
对光泽暗淡的铜器，黄铜，或者不锈钢说拜拜。
Say good-bye to tarnish on brass, copper, or stainless steel.
在几轮实验后，即使没有电击，老鼠也对光照产生畏惧。
After a few rounds, the rats would respond fearfully to the light, even if no shock came.
其中一个最新的方法是依靠基因，让藻类对光线变得敏感。
One of the newest methods relies on a gene that makes algae sensitive to light.
身体对光是有感觉的，而在一个全黑的房间里入睡会更方便。
The body responds to light, and it is much easier to sleep in a completely dark room.
最常见症状为颈部僵硬、高烧、对光敏感、精神错乱、头痛和呕吐。
The most common symptoms are stiff neck, high fever, sensitivity to light, confusion, headache and vomiting.
最常见的症状是颈部僵硬、高烧、对光敏感、精神错乱、头痛和呕吐。
The most common symptoms are a stiff neck, high fever, sensitivity to light, confusion, headaches and vomiting.
在每个人的人生中都会有一些时刻你需要面对光明与黑暗之间的选择。
In everyone's life there are moments in which you face the choice between dark and light.
正是这种组织不同图层对光线的反射，赋予了蝴蝶翅膀五光十色的效果。
The way light reflects from different layers gives us butterfly wings’ intense colors.
正是这种组织不同图层对光线的反射，赋予了蝴蝶翅膀五光十色的效果。
The way light reflects from different layers gives us butterfly wings' intense colors.
FSO更是安全可靠：能够拦截信号的唯一方法是对光束的物理隔断。
FSO is also secure: the only way to intercept the signal is physically to intercept the beam.
现在有一种对光十分敏感的玻璃，它像胶卷一样能记录图像和图案。
There now exists a kind of glass so sensitive to light that, like photographic film, it will record pictures and designs.
爱因斯坦对光子的确认奠定了20世纪的许多先进电子发明的开发基础。
Einstein's identifying of photons underlay the development of many of the advanced electronic inventions of the 20th century.
粗糙的水面通过对光线进行反射和多角度的散射使得太阳的反射光变得模糊（左图）。
Rough water blurs the Sun’s reflection by reflecting and scattering light in many directions (left).
纳米晶体是由一种称为碲化镉的半导体材料所组成，这种材料对光线的吸收效果非常强。
The nanocrystals consist of a semiconducting material called cadmium telluride, which is a very strong absorber of light.
摄影小贴士：正对光线进行拍摄(背光拍摄)会为头发、服装及其他细小物件添加晕轮效果。
Photo Tip: Shooting into the light, or "backlighting," will add a halo effect to hair and clothing and other details of the subject.
所以，密立根的文章根本不像我们现在认为的那样，是对光的量子理论的实验验证。
So Millikan's paper is not at all, as we would now expect, an experimental proof of the quantum theory of light.
然而，尽管欧洲船厂仍然经受着三十年来亚洲船厂的低成本竞争，他们面对着相对光明的前景。
Oddly, Europe’s shipyards, although still storm-lashed after 30 years of low-cost competition from Asia, seem to face a slightly brighter horizon.
心存疑虑的医生检查了他的眼睛，发现它们对光有反应，于是，立刻将他推到急诊室并救活了他。
The doctor became suspicious and examined his eyes. When they responded to light, he was immediately wheeled to emergency surgery and saved.
通过对比分明的构图和对光线的掌握，艺术家把这种转化开拓为一个可供玩味的空间。
This transformation creates a space for observation via a repetitious composition that plays on light and a strong sense of contrast.
由于长期处于地下，作为对光照减少的反应，帮助瞳孔扩张和收缩的化学物质的产生会相应减少。
Living underground can depress production of the chemicals that help dilate and contract the pupil in response to changes in light.
由于长期处于地下，作为对光照减少的反应，帮助瞳孔扩张和收缩的化学物质的产生会相应减少。
Living underground can depress production of the chemicals that help dilate and contract the pupil in response to changes in light.
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