Exposure to ultraviolet light is closely linked to skin cancer.
受紫外线照射与皮肤癌紧密相关。
When composition, light, and exposure are all superb, "best" truly is in the eye of the beholder.
当构图、光线及曝光都十分出色时，“最佳”实在是个人有个人的标准。
Exposure to more artificial light from TVs or computers is one theory.
过多地曝露于电视或电脑的人工光源中可能是一个原因。
The problem is, adolescents and teens may have limited exposure to the morning light.
问题是，青少年很少有机会充分地接触到上午的阳光。
Welsh artist Michael Bosanko used colored torches and a digital camera with the shutter left open on a long exposure to create the beautiful "light graffiti" photos.
威尔士艺术家麦克博斯安可使用彩色电筒和一台数位相机，利用快门曝光创作了炫彩的“光涂鸦”照片。
Part of the trick was to find a suitable photochromic material whose clear and opaque parts would remain stable after the initial exposure to light.
成功实现这一过程的部分关键在于找到合适的光敏材料，其在最初曝光之后透明与不透明区域都应保持稳定。
A long exposure time captured stars in this photo-and the brief balanced light from both a fading moon and a brightening eastern sky.
长时间曝光捕捉到照片中的星星，以及淡出的月亮和明亮的东部天空短暂的平衡光。
Photographer Phil Schermeister has made an elegant exposure, which allows the light to glow.
摄影师菲尔所做的曝光恰到好处，明暗相得益彰。
The front curtain drops away, revealing the sensor behind, and allows the light to enter the camera, beginning the exposure.
前幕帘落下，后方的感光元件露出，光线进入相机，曝光开始。
You will be exposing both the lightning and the foreground and background when you are taking these pictures. The ambient light will determine your exposure time.
在曝光时你要照顾到闪电和前后景，周边的光线会限制你的曝光时间。
After a period determined by the set shutter speed, the rear curtain now drops to close the camera to light and end the exposure.
度过由快门速度设置的曝光时间后，后幕帘落下闭合，曝光停止。
The first permanent photograph was made in 1826 by Joseph Nicéphore Niépce, building on a discovery by Johann Heinrich Schultz (1724): a silver and chalk mixture darkens under exposure to light.
1724年，约翰·海因里希·舒尔茨发现银和白垩的混合物见光后会变黑。
But you also know that at that speed you risk not getting enough light for a proper exposure.
但你同样知道，你要冒着得不到足够光线来进行曝光的风险使用这个速度。
She suspects there may be a link between humans' increased exposure to light at night and the increase in rates of obesity nationwide.
她怀疑，人们夜晚在灯光下暴露时间的增多与全国肥胖比率的增加可能存在着某种联系。
Recently, Figueiro ran an experiment to see how exposure to morning light affects the circadian clocks of middle school students.
最近，菲戈罗进行了一项实验。她通过实验观察上午的阳光是如何影响中学生的生物钟的。
Scientists have long known that our circadian rhythm is regulated by our exposure to light.
科学家们很早就知道光照时间长短控制着我们的生理节奏。
After one hour of exposure to light, they reported in a recent issue of Applied Materials &Interfaces, the capsules killed more than 95% of the bacteria used in the study.
他们在近期的《应用材料和界面》中报道，在接受光照一小时之后，这种胶囊杀死了多于95%的用于实验的细菌。
However, if there is indeed a link, then perhaps people should minimize exposure to artificial light at nighttime.
如果两者真的有关系，那么人们在晚上可能要尽量避免非自然光的照射。
First, take all of the buildings and put them as close as possible to one another to minimize solar exposure and improve light.
首先，进行建筑布局，让它们尽可能接近，最大程度减少太阳光照射的同时，改善采光。
He explains this weird photography USES different light sources during long exposure times.
他称自己诡异的成像手法源自于不同光源下长时间的曝光。
Increased exposure to ultraviolet light is a risk factor.
过多地暴露于紫外线是一个危险因素。
She has a huge corona of springy, tightly curled hair that suggests prolonged exposure to a light socket, and a personality to match: forthright, disarming, uncensored.
她有着一头弹性十足的浓密细卷发，这或许说明了她长期在电灯下工作（热胀冷缩）； 她的个性正如她的头发一样——直率，温和，不羁；
The NWS cautions that its given heat index values assume shady, light wind conditions and that exposure to direct sunlight can increase the heat index by 15 degrees.
国家气象局(NWS)提醒道，它给出的炎热指数值并不可靠，微风条件和暴露于阳光直射下都能增加炎热指数15度。
During the UK winter, vitamin D from foods fortified with the vegan form (ergocalciferol, D2) can help to compensate for limited light exposure.
英国的冬季，强化食品中的纯素维生素D（钙化醇，维生素D2）可以帮助弥补有限的日晒。
In theory, you'll gradually get sleepy about 20 minutes earlier each night, and you can facilitate the transition by avoiding extra light exposure from computers or televisions as you near bedtime.
从理论上讲，每天晚上你会比前一天提前20分钟感觉到睡意，为了增强效果，临睡前应该避免电脑、电视等发出的亮光。
In theory, you'll gradually get sleepy about 20 minutes earlier each night, and you can facilitate the transition by avoiding extra light exposure from computers or televisions as you near bedtime.
从理论上讲，每天晚上你会比前一天提前20分钟感觉到睡意，为了增强效果，临睡前应该避免电脑、电视等发出的亮光。
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