Run during light and Warmer Times of Day: If possible, run during the light hours so absorb that needed sunshine we rarely get in the winter.
在光线充足和一天最温暖的时候跑步：如果可能，在有光照的时候跑步，以吸收在冬季难以获得却又是必需的阳光。
Strano's team found that they could create a faint light for three and a half hours.
Strano的团队发现，他们可以在三个半小时内产生微弱的光线。
A third group are known as crepuscular: they thrive in the low light of dawn and dusk and remain inactive at other hours.
第三组被称为黄昏组：他们在黎明和黄昏的微光中茁壮成长，而在其他时间则不活跃。
Last night, after what seemed hours of damp turmoil, I got up and crept slipperless down the stairs, feeling my way in the faint street light that came through the window.
昨晚，在经历了几个小时的混乱之后，我起床了，没穿拖鞋，蹑手蹑脚地走下楼梯，借着从窗户透进来的微弱街灯摸索着前进。
You have more hours of light in summer.
夏天日照时间更长。
The battery is also a flashlight, and it can provide ten hours of light.
电池也是一个手电筒，它可以提供十个小时的照明。
In an old building in Peking University, a yellow light shone into the old and dark hours of the night.
在北京大学一栋老建筑里，一盏黄色的灯照亮了古老而黑暗的夜晚。
Together, they can give light to an area of up to 6,400 square kilometers on the Earth for 24 hours.
它们合在一起可以给地球上高达6，400平方公里的区域提供24小时的照明。
As autumn advances the days close in and the hours of light become fewer and fewer.
随着秋天的推移，白昼越来越短，光照时间也越来越少。
If I got hurt when fixing the light, even during office hours, I wouldn't get compensation from our company since repairing is not my responsibility.
如果我在修灯的时候受伤了，即使是在办公时间，我也不会从公司那里获得赔偿，因为维修不是我的责任。
In 1987, trillions of neutrinos arrived at Earth 3 hours before the dying star's light caught up.
1987年，万亿个中微子在临终的恒星光赶到地球3小时以前就到达了地球。
That means they should escape the star almost immediately, while photons of light will take about 3 hours.
这意味着它们几乎应该立即脱开恒星，而光子则需要约3小时才能离开。
Since the invention of the light bulb, people sleep about 500 hours per year less than they used to.
自从灯泡发明之后，人们比没有灯泡的时代平均一年少睡500个小时的觉。
When kept in 12 hours of light and 12 hours of darkness the mice - which are nocturnal - began consuming more food when the lights were on as early as the first week.
研究人员将老鼠放在光照下12小时，黑暗中12小时。在有光照的情况下，老鼠(喜欢在夜间活动)开始摄入更多的食物，这种现象早在第一周就表现出来了。
It is so far from Earth that radio signals, traveling at the speed of light, take 16 hours to reach the spacecraft.
它与地球的距离如此之远，以致地球发出的无线电信号要以光速传播16个小时才能到达这部航天器。
These clocks are sometimes set by the number of hours of light or darkness in a day, by the rhythm of the tides or by the seasons.
这些时钟有时根据一天中白昼或黑夜的小时数目设定，有时根据潮汐的规律或者季节设定。
If they have a cycle shorter than 24 hours, they need evening light to sync up, and if it's longer than 24 hours, they need light in the mornings.
如果他们的自身节律比24小时短，就需要在夜晚接受光照以和自然节律同步；如果他们的自身节律超过24小时，就要在早晨对他们进行光照，以加速其自身节律。
To keep the battery charged, it requires exposure to 10 hours of indoor light each day or 1.5 hours of sunlight.
为给电池充电，须达到每天10小时的室内光照或1.5小时的日照时间。
The study classified heavy users as consuming more than 16 hours a day and light users as less than three hours.
上瘾的标准在这里指每天使用时间超过16小时，而不经常使用是指低于三小时。
"Those factors all combine to make the day of the equinox not the day when we have 12 hours [each] of light and darkness," Chester said.
“这些因素结合起来就造成了昼夜12小时等长的一天不可能是春秋分日，”切斯特说。
They receive light workloads, shorter hours and perks like coaching and training facilities.
他们的工作量不大，工作时间更短还可以获得培训和训练设施等额外津贴。
Half were housed in a standard light-dark cycle of 16 hours of light (at 150 lux) followed by eight hours of total darkness.
其中一半田鼠被封闭起来并做周期性的光照实验，每个周期先用150勒克斯的光照持续照射16个小时，然后完全黑暗持续16个小时。
After 72 hours of exposure to ambient light, strands ofnanoparticles twisted and bunched together. Credit: Nicholas Kotov
经过72小时地暴露于环境光下面以后，可把多股纳米粒子扭曲和捆绑在一起。
If you think that the energy generated by a 15-minute kick around provides three hours of light, you can read a lot of pages from a textbook in that time.
如果你料想，踢大约15分钟足球产生的电能足够提供3个小时亮光的话，那么你可以在那段时间看很多页书。
Researchers raised baby mice from birth to weaning in either "summer" light cycles of 16 hours of light and eight hours of dark or "winter" cycles of eight hours of light and 16 hours of dark.
研究人员们将一组小鼠在“夏季”模拟光照周期下（光照16小时，无光照8小时）从出生培养至断乳期，而将另一组小鼠在“冬季”模拟光照周期下（光照8小时，无光照16小时）培养至相同时间。
"If your cycle length is shorter than 24 hours, you need evening light to keep you synchronized," Duffy says.
如果你的周期长度小于24小时，你就会需要晚上睡得晚来保持同步。“Duffy说。”
The time can be read easily with a touch of the button. The first two columns show hours; in column 1 each light equals 5 hours, in column 2 each light equals 1 hour.
只要轻触按钮，就能轻松读取时间：前两列显示时；第一列每盏亮灯表示五个小时，第二列每盏亮灯表示一个小时。
The third group had its 12 hours of light advanced by six hours once a week, mimicking eastbound travel.
第三组的白昼时间则为每周提前6小时，以模拟向东旅行后造成的时差。
With limited daylight, chances are you'll be running in the dark (Alaskans, sadly, get only a few hours of dim light per day).
在有限的日光条件下，你极有可能会跑进暗处(很遗憾地说，阿拉斯加每天仅有几个小时的日光。)
Well, as I say, they took me to several of these parties, and we used to sit for hours round tables, in a dim light, holding hands.
如我所说，他们带我到好几个这样的聚会，并且伴着微弱的灯光我们习惯于手拉着手在桌子旁坐上几个小时。
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