Humanity has been trying to use the sun's light as a reliable source of energy for centuries.
几个世纪以来，人类一直试图利用太阳的光作为可靠的能源。
One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.
误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。
It would seem sensible to seek the source of these in the universe's most conspicuous energy factories: quasars and gamma-ray bursts billions of light-years away from Earth.
在宇宙中最引人注目的能量工厂——距离地球数十亿光年的类星体和伽马射线爆发——中寻找这些物质的来源似乎是明智的。
The whole fixture must be replaced—light source and luminaire—and this is never an inexpensive proposition.
整个装置——光源和灯具——必须换掉，而这一提议绝不便宜。
If what they're saying is correct, which I believe it is, things like the light source are going to strip atoms from the inside out.
如果他们说的是正确的，就像我所相信的，像光源这样的东西会把原子从内部剥离出来。
The light source must therefore be immensely brighter if it is to be used as a headlight to illuminate the path, than if it is to be used as a signal to others.
与用作被人识别的信号相比，如果用作照亮路途的头灯的话，光源必须要明亮很多。
The process involved using intensive X-ray light produced at the National Synchroton Light Source in Brookhaven, N. Y.
这种方法使用了纽约布鲁克黑文的国家同步加速器光源产生的强大的X射线。
The light source irradiates infrared light onto the biosome from the shotting side of the biosome.
上述光源从上述生物体的摄像侧对上述生物体照射红外光。
The invention of the laser provided scientists with a stronger source of light and a push that could do useful work on Earth.
激光的发明给科学家们提供了一种强大的光源，同时也是地球上的一种能够产生有效功的推力。
Abandoning incandescent bulbs means abandoning fire as our primary light source for the first time in human history.
禁止白炽灯泡就意味着人类历史上，我们第一次禁止把火作为基本的照明来源。
The stars in centre our Milky Way Galaxy are the most significant source of light which helped to create dark reflections on the water in the middle of the frame.
银河系中间的恒星是几乎成了光线最重要的来源，它有助于在水面中间创造出黑暗的反光。
She reflects the rays from the sun, the source of light and heat, the symbol of truth and knowledge.
而太阳才是光和热的源泉，是真理和知识的象征。
This is because, with a broad source, light rays hit your subject from more directions, which tends to fill in shadows and give more even illumination to the scene.
这是因为光源越广，射在物体上光线的方向就越多，这会起到增加场景中的照明、减少阴影的作用。
The scientists needed a source of violet light, and found it in the gold nanoparticles.
因此科学家需要在金色纳米微粒中找到紫光源。
But Mars is much closer than the distant stars and an extended source of light.
不过火星比遥远的恒星距离我们更近，光源也更为扩展。
Each source of light is a different color, and the bizarre quality of the different lights sets a perfect mood for a picture of Las Vegas.
各个光源的颜色均不相同，而不同光线的怪异质感营造的氛围正好是拉斯维加斯的完美写照。
But during an eclipse, the source of light is blocked and the moon's disk goes unusually dark.
但在整个月食过程中，光源被挡住，月亮的盘面通常是暗的。
With the help of a compound and a light source, we're granting that cell the ability to bow out gracefully.
在光激活化合物的帮助下，我们给予该细胞消失的能力。
Though researchers do not know when the light left its source, they can still compare arrival times.
尽管研究者不清楚光何时离开光源，他们仍然可以比较到达时间。
Histogram - One thing to watch out for is letting any light source in your image (whether it be headlights, street lights etc) washing out your image.
直方图- - -要注意的一点是任何图片中的光源(不管是头灯，路灯等等)会冲刷你的照片。
A broad light source lessens shadows, reduces contrast, suppresses texture. A narrow light source does the opposite.
广泛的光源能够弱化阴影、降低对比、抑制纹理，较窄的光源则作用相反。
Tip: For spark in a backlit portrait or silhouette, try compositions that include the light source. This can drive your meter crazy, though, so bracket your exposures.
小提示：在拍摄背光照明的人像或剪影时，试着将光源纳入构图中，但是这样会导致测光表读数不准，因此可以尝试使用包围曝光法。
By positioning the subject near the light source and allowing some of the subject to underexpose, the photographer can let light touch only the most important part of the subject.
让被摄者靠近光源并有选择地让被摄对象的某些部分欠曝，摄影师能让光线照亮被摄者最重要的部分。
Ozcan USES an LED as his light source, creating cellular shadows.
欧兹坎用LED(发光二极管)作为光源，以此制造细胞的阴影。
In tests, Bongard's evolving robots were able to reach the final goal of moving to the light source without falling over faster than non-evolving robots.
测试中，邦加德的仿生机器人能够比非仿生机器人更好感应光源快速走向特定目标而不摔倒。
After a century as a primary source of artificial light these energy-guzzling bulbs are set to be replaced by light-emitting diodes (LEDs), powered by semiconductors.
在过去的一个世纪中，白炽灯泡一直为人造灯源的基本产品；但现在，耗能惊人的白炽灯泡注定将被由半导体驱动的发光二极管(LED)所替代。
Also, make sure that your screen is at a 90-degree Angle to any light source to cut down on glare.
同时，确使你的屏幕对任何光源都保持90度角来减少光的强度。
The size of your light source, relative to your subject, affects the overall look of the picture.
光源与被摄体的相对大小，决定了照片的整体效果。
Ambient reflection: The light that is reflected by an ambient light source.
环境反射：由环境光源反射的光线。
Ambient reflection: The light that is reflected by an ambient light source.
环境反射：由环境光源反射的光线。
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