在你进光线暗的房间时应该拿个手电筒。
You should use a flashlight to help you see into dark rooms.
不要在光线暗的地方工作把眼睛损害了。
把啤酒放置在凉爽、光线暗的地方，如冰箱的底层，味道最佳。
Beer will taste best when it's stored in a cool, dark place, like the bottom of your refrigerator.
“我们知道当光线暗的时候，事情就不妙了(指污染严重)，”韦德博士说道。
"We know things are really bad when the light goes out," says Dr Widder.
在光线暗的条件下对于应用来说是可取的，开发者对于光线条件没有办法控制。
This is desirable for applications with low lighting, or in which the developer has little control over lighting conditions.
纽约大学研究人员制造出了一种使用不可见光照明的相机闪光灯，不会让人觉得眼花，在光线暗的情况下依然拍出高质量的照片。
NYU researchers create a camera flash that uses invisible illumination, blinding no one, but still taking high-quality pics in low-light situations.
纽约大学研究人员制造出了一种使用不可见光照明的相机闪光灯，不会让人觉得眼花，在光线暗的情况下依然拍出高质量的照片。以下是相机工作原理。
NYU researchers create a camera flash that USES invisible illumination, blinding no one, but still taking high-quality pics in low-light situations. Here is how it works.
因此，最好的观测点是海拔高、光线暗且干燥的地方。
The best observatory sites are therefore high, dark, and dry.
在充足的光线下，树林边缘的树木呈现出一种暗棕色的绿色——因为已经到八月底了。
The trees on the wood-edge were a darkish, brownish green in the full light—for it was the end of August.
通过时明时暗的光线，我能够辨别出来，这里或那里有枪、帽子、军裤、靴子、胡子、又一支枪和白色旗帜。
In the fading light I could make out here and there guns, hats, combat trousers, boots, a beard, another gun and a white flag.
因为满月之后光线越来越暗，使得狮子以及其他食人动物受益于阴影而获得成功攻击猎物的惊喜。
As the full moon diminishes, there is less and less light, allowing lions as well as other maneating animals to surprise and attack their prey successfully from the shadows.
使房间保持较暗的光线和安静，不要在床上工作，让可能造成分心的事情都离开这里。
Keep your room dark and quiet, and remove distractions (no working in bed).
一旦我们找到这样一颗行星，我们就要想办法将它的恒星射过来的光线遮暗，这样我们就能彻底“看见”这颗行星，并分析它的大气层。
Once we detected a planet, we would have to find a way of blotting out the light from its star, so that we would be able to 'see' the planet properly and analyze its atmosphere.
当前的计算机模型预测：近距离围绕恒星运行的炽热的木星类行星(巨大的气体球)只能像水星一样暗，后者能反射照射到它上面的大约10%的太阳光线。
Current computer models predict that hot-Jupiter planets-gas giants that orbit very close to their stars-could be only as dark as Mercury, which reflects about 10 percent of the sunlight that hits it.
这种激光器的相反工作模式才是它真正的新奇之处，其中大部分时间光线是打开的，但它在很短的闪烁及非常短暂的暗脉冲里关闭。
"What's really novel is that this laser works in the opposite mode, where most of the time the light is on, but it turns off in very brief flashes, very brief dark pulses," said Wiener.
因此，在一个可能会错过上最轻和最暗区域的细节的单一管理单元，同一场景下hdr图像看起来更加光线充足。
So, where a single snap may miss out on detail in the lightest and darkest areas, an HDR image of the same scene looks preternaturally well lit.
在将工人们吊上来的时候救援人员会给他们戴上特殊的太阳眼镜，而且他们的病房在头几天也会保持较暗的光线。
Rescue workers will put special sunglasses on the men as they hoist them from the mine, and their hospital rooms will also be dark for the first few days.
心理学家发现，关在一天24小时灯火通明房间里的老鼠比关在按正常明-暗光线循环房间里的同类老鼠表现出更多的抑郁症状。
The psychologists found that mice housed in a lighted room 24 hours a day exhibited more depressive symptoms than did similar mice that had a normal light-dark cycle.
这就叫做“暗光适应”。你的眼睛花上一个钟头就可以完全适应光线暗淡的环境。
This is called "dark adaptation" and it takes your eye up to an hour to become fully adapted to seeing in low light conditions.
避开杂乱的背景，或光线过亮或过暗的色块。
Avoid backgrounds that are too busy or have very light or dark patches of colour.
在制造暗闪光相机模型机时，费格斯用另外一种允许一些红外光线通过镜头，但不至于滤入太多红外光线，损坏相机传感器的滤光片代替传统滤光片。
When building his prototype, Fergus replaced this filter with another that lets some IR through the lens without flooding the camera's sensors.
举个例子来说明一下，带有这样传感器的相机，即使在光线较暗的地方不用闪光灯照出的照片同样非常出色，这是普通的傻瓜相机所不能比的。
So it's pretty good in low light without the flash - far better than a pocket camera would be, for example.
这颗行星被命名为TrES-2b，它仅反射低于1%的恒星光线，这使得它比迄今发现的任何行星或卫星都要暗。
The planet, known as TrES-2b, reflects less than 1 per cent of light, which makes it darker than any other planet or moon.
天文学家应用来自遥远恒星的光线的路线被一个巨大银河星系团(Abell 1689)所扭曲，由此计算出宇宙中暗能量的总量。
Astronomers used the way that light from distant stars was distorted by a huge galactic cluster known as Abell 1689 to work out the amount of dark energy in the cosmos.
一旦我们找到这样一颗行星，我们就要想办法将它的恒星射过来的光线遮暗。
Once we detected a planet, we would have to find a way of blotting out the light from its star.
夕阳西下，天色很快暗下来，但是还有足够的光线。
两个庭院将建筑分为三部分，这样在建筑最暗的地方也能得到自然光线和通风。
Two patios cut the volume in three parts, allowing natural lighting and ventilation in the darkest areas of the building.
小径在渐渐消失的光线下变得更暗了。
所有按钮都均匀地点燃了白色的，使所有关键字幕非常可读的，在光线较暗的条件。
All buttons are evenly lit in white that makes all key captions very readable in low light conditions.
为了实现这个目标，我叠加了蓝色，并将照片颜色调暗，这样室内的光线就很显眼。
To do this, a blue overlay was added and some vignetting around the edges which allowed the interior lights to really pop.
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