I am sure you all know from physics class about how light moves in microscopic ways and that we can only see light when the wavelength of that light is in a specific range.
我相信，你们在物理课上都学过光是如何以微观的方式运动的，以及只有在光的波长在特定的范围内时我们才能看到光这一事实。
Spectroscopy is basically the study of spectra and spectral lines of light, and specifically for us, the light from stars.
光谱学基本上是一种研究光谱和光谱线的学科，特别对我们来说，是研究恒星发出的光。
Light pollution is largely the result of bad lighting design, which allows artificial light to shine outward and upward into the sky.
光污染在很大程度是因为照明设计得不好，人造光可以向外和向上照射到天空。
Turn on your desk light and there is enough light.
打开你的桌灯就会有足够的光线。
If the venue of your presentation is not adequately light-proof, select a dark-colored background and use any light color for text.
如果演示的地点不具备足够的防光性，请选择深色背景，并为文本使用任何浅色。
When you want to know if something is transparent to visible light or not, here is the mystery material and here is visible light.
当你想知道某物对可见光是否透明时，这里是神秘物质，这里是可见光。
There is another class of lasers, however, that pulse, oscillating between an "on" stage, where light is produced, and an "off" stage, when the amount of light is dramatically reduced.
脉冲激光器是另一类的激光器，它的脉冲是在“开”与“关”两种状态的振荡之间产生。当激光器处于“开”的状态，产生光，在“关”的状态，光量显著减少。
You would die, and he flicks on that light again which is your light. What is the term?
你会死，然后上帝向你的灯弹指一挥，那个词是什么？
Fill flash is when you are outdoors for example and the light you are getting from the sun is the main light. Fill flash is just that.
现在来谈谈闪光灯补光，补光是指当你在户外，阳光是主要光源时，闪光灯用来照亮阳光给人物带来的阴影等影响(如兔眼等)。
Notice that the floor plan shows a light on the left that is turned on and a light on the right that is turned off.
注意到平面图中显示的左侧的一盏灯处于开启状态，而右侧的一盏灯处于关闭状态。
Yes-the office light is off, and the only light I have is coming in from the window.
对，办公室的灯都关着，只有窗户进来的光线。
And when the shadow fades and is no more, the light that lingers becomes a shadow to another light.
当阴影消逝，驻留的光将成为另一道光的阴影。
Look at the shadows, identify where the light is coming from. Become aware of light and its magic.
通过阴影来判断光是从哪里来的。
Once you are in the habit of considering how the light is falling on your subject you can select a viewpoint and time of day so that the light enhances your subject, rather than detracts from it.
一旦你形成了考虑光是如何落到你的主题物上的习惯，你就会形成自己的观点和每天的时间点来增强你的照片效果，而不是损伤它。
Light pollution is made worse with air pollution, as the small particles that float in the air serve to scatter and reflect the light, compounding the problem.
而空气污染又使光污染问题愈发严重，因为漂浮在空气中的小颗粒通过散射和反射光线，加剧了这一问题。
Specifically, what is going on here is the Earth's atmosphere scatters light in the blue and violet wavelength range, so the remaining wavelengths of light appear yellow.
更准确一些的说，地球大气层把蓝色和紫色的波长范围进行散射，所以光线中剩下的波长就显现出了黄色。
That which is not of the light is in extreme pain and will surface to be cleared and re-qualified back into pure Light and Divine Love.
那不是用光构成的正处于极其痛苦之中，将会浮出表面被清理掉，并重新获权返回到“纯粹之光与神圣之爱”中。
At the Seventh Dimension of Light, there is a Clear Understanding of the Divine Light in all things and the Joy of celebrating the Divine Light and Heart in Ceremonies of Sacred Communion and Love.
在第七维度的光中，你们会对存在于所有一切中的神圣的光有清晰的认识，同时你们也会在庆祝神圣的爱到来的过程中感受到无比的欢乐。
Transparency is crucial because it would allow for flexible and transparent light displays, and solar collection from Windows that still allow the light in.
透明度对于柔性透明光显示器件是至关重要的，用来收集太阳能的窗口可以让光进入。
The star system, located only 400 light years away, is distinguished by its colorful surroundings, which include a red emission nebula and numerous light and dark brown dust lanes.
这个恒星系统在400光年远处，以多彩的环绕物质而著名，包括一个红色发射星云和众多深棕、浅棕色的尘带。
And the moment that the light - emitting diode is occluded, the timer starts, and the moment that the light - emitting diode emerges again, the timer stops.
那一个瞬间，闪光二极管被挡住，计时器开始，那一个瞬间，闪光二极管再次出现，计时器停止。
The philosopher seeks to judge those beliefs in the light of true standards in the light of what is always and everywhere true as a quest for knowledge.
哲学家追寻的是以真正的标准，来评判那些信念，鉴于追寻知识，无论在何时何地皆真的标准。
In that chapel is a lovely window where the morning light streams in and washes the simple flowers with light.
小教堂里有一扇精美的窗户，晨光从中直射而入，将窗台上的花儿完全浸没。
It's the difference between opening your refrigerator door and the light is just on, versus opening your front door to find a dark apartment and then fumbling for the light switch.
这和打开冰箱门灯就会亮和打开前门发现一个黑暗的公寓然后摸索着去找电源开关的不同一样。
White reflects light and is considered a summer color. White is popular in decorating and in fashion because it is light, neutral, and goes with everything.
白色反射光线因此看起来更亮一些，并被认为是夏天的颜色，白色是设计服装与装潢的流行色，应为它看起来轻巧、中性并容易与其它颜色搭配。
The ESL bulbs generate light by firing electrons to stimulate phosphor, and the whole setup is encased in normal light-bulb glass.
在普通的电灯玻璃管内，ESL灯通过向内置的荧光粉发射电子而发光。
The ESL bulbs generate light by firing electrons to stimulate phosphor, and the whole setup is encased in normal light-bulb glass.
在普通的电灯玻璃管内，ESL灯通过向内置的荧光粉发射电子而发光。
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