在这段时间里，自然中鸟类的食物越来越少，空气温度也越来越低，额外的喂养可以让鸟类保持温暖和健康。
During this time when fewer natural foods are available and air temperatures are lower, extra feeding can keep a bird warm and well.
风速和风向会影响放射性尘粒到达的时间；冰雹则能带出空气中的放射性尘降物。
Wind speed and direction will affect arrival time of fallout; precipitation may wash fallout from the atmosphere.
微小的固体和液体粒子——一些你能够看到，一些你看不到的——在每年的任何时间，在星球中的任何一处空气中都能够被发现。
Tiny solid and liquid particles-some you can see, some you cannot-can be found in the air everywhere on the planet, at any time of year.
森林化石之所以能够保存如此长的时间，是因为在山体滑坡中它们被快速掩埋，之后与水和空气隔绝，从而未能腐烂。
The mummified trees were likely preserved so long because they were buried quickly by landslides and thus protected from air and water, which hastens decomposition.
这种有机玻璃桶可以让工作人员在展示和拍摄标本的同时，避免标本长时间暴露在空气中。
The tub allowed workers to unfurl and photograph specimens without exposing them to air for long.
这是观察android的世界，空气中弥漫着不确定的气息已有段时间了。
Here in the Android-watching world, the air has smelled of uncertainty for quite some time.
尽管大部分气溶胶在空气中悬浮的时间很短，基本上在4天到一周之间，但是它们能扩散到很大的范围。
Although most aerosols remain suspended in the air for just short periods-typically between four days and a week-they can travel vast distances.
考古学家们把这个发现称作‘重大意义’，同时Pappalardo先生描述了这些研究线索是怎样在一块精美的木材被暴露在空气中后转变为和时间的抗争。
Archaeologists have called the find 'significant', meanwhile Mr Pappalardo described how the search for clues has turned into a race against time after the delicate wood was exposed to air.
Buters还对“病态建筑综合症”进行了研究。新建筑中的空气携带很多挥发性有机化合物，人们在其中工作一段时间后容易生病。
Buters also researches "sick building syndrome," in which people apparently get sick after working in new buildings, where the air can be loaded with volatile organic compounds.
在1月18日当地时间4:53am，一位肯尼亚的博客用户JulianaRotich用她自己的电报略语在twitter上写到：“在nbi镇，我能闻到空气中的催泪瓦斯的味道了。”
At 4:53 am local time on January 18th Juliana Rotich, a blogger in Kenya, tweeted in her own cablese, “in town nbi.i can smell tear gas in the air”.
所以氧气并不能在空气中堆积很长时间，因为它被易氧化的石头吸收了。
The oxygen did not build up in the atmosphere for a long time, since it was absorbed by rocks that could be easily oxidized (rusted).
随着时间的过去，持续暴露在水中或空气中的毒素里将会让晶态生物体病倒。
Over time the ongoing exposure to toxins in the water and air will make the crystalline biology ill.
他们说这是因为病毒在冷而干燥的空气中能够停留更长时间。
They say it is because the virus remains in the air longer when the air is cold and dry.
因此这些小颗粒在空气中飘浮相当长的时间。
Because of this they can float in the air for a very long time.
研究者称生活在绿色植物环境中的女性有更多的时间去锻炼，而且她们受到的空气污染也较少。
Researchers said women in greener areas spent more time with others, exercised more and exposed to less air pollution.
臭氧流失的原因，科学家说是因为冷空气长时间持续盘旋在北极地区的上层大气中。
The reason for the loss, say scientists is that cold weather persisted for a long time in the Arctic region's upper atmosphere.
塑石假山的稳定性主要靠主结构来完成，但随着时间的推移，钢材在接触空气及水的过程中，容易发生腐蚀、生锈。
Plastic rockery stone stability is mainly rely on the main structure completed, but with the passage of time, steel in the process of contact with air and water, prone to corrosion and rust.
极其便利地解决吸烟者难题，降低危害，大大改善吸烟环境，让氧分子长时间保持于空气中，使您所处环境的空气时刻保持清新。
It can solve the problem of smokers, reduce the hazard, improve the environment, keep the oxygen molecules and thus fresh the air around.
专家称，长时间呼吸空气中的颗粒物，特别是直径小于2.5微米的可入肺颗粒物（PM2.5）对人体健康危害很大。 。
Longtime exposure to particulate matter especially the particulatematter smaller than 2.5 micrometers (PM2.5) which can go directly to thealveoli of the lungs is a major health hazard.
如果我们用过眼睛和耳朵，我们就知道声音在空气中传播是需要时间的。
If we have used our eyes and ears, we have already realised that sound takes time to travel through the air.
结果表明，固化气氛对酚醛型氰酸酯的反应活性有着显著的影响，在空气气氛中的凝胶时间远小于惰性气氛的凝胶时间。
The results showed that the gel time of uncured resin could greatly affected by ambience, which is much shorter in air than in an atmosphere.
否则，例如，赫可能具有太多的腿在空气中在同一时间，变得不稳定，并翻倒。
Otherwise, for example, Hector might have too many legs in the air at one time, become unstable, and fall over.
在估算紧密编队飞行中长机翼尖涡对僚机的影响时，本文在所用到涡模型中也考虑了由空气粘性引起的涡流随时间的衰减效应。
We also consider the effect of vortex decay over time caused by the viscidity of atmosphere in our vortex model in estimating the vortex effect experienced during the close proximity formation flight.
一时间，南瓜刺鼻的气味飘荡在空气中。
煤粉火炬在扩张过程中，随时间、空间、空气动力场等的变化，火炬扩张的形式不同。
In the expanding process, the coal powder torch's expanding form is varying with the change of time, space, and air flow field.
光镜下观察冻存及培养于哥伦比亚平板上的菌株在暴露于空气中不同时间段的形态变化；
Methods Frozen and plate cultured Hp strains were exposed to air, and then were observed for morphological changes under light microscope and growing characters at different exposure time.
在这些冰晶飘落到地面的过程中，空气的阻力使得它们大部分时间保持近似扁平状。
Air resistance causes these crystals to lie nearly flat much of the time as they flutter to the ground.
该设计是以空气中超声波的传播速度为确定条件，利用超声波反射时间为参数来测量待测距离。
The design is based on the velocity of the air ultrasound to determine the conditions for the use of ultrasound reflection time parameters to measure the unknown distance.
该设计是以空气中超声波的传播速度为确定条件，利用超声波反射时间为参数来测量待测距离。
The design is based on the velocity of the air ultrasound to determine the conditions for the use of ultrasound reflection time parameters to measure the unknown distance.
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