However, if the planet is in a good position, astronomers look for three key things: water, air and rock.
然而如果这颗行星处于很好的位置，天文学家会寻找三样关键的东西：水、空气和岩石。
On land, the supportive buoyancy of water is missing, the plant is no longer bathed in a nutrient solution, and air tends to dry things out.
在陆地上，水的浮力支持消失了，植物不再浸泡在营养液中，空气会使植物变干。
With temperatures rising and more water vapor in the air, such storms can pull in more moisture and thus rain or snow more heavily than storms of old.
随着气温升高，空气中的水蒸气增多，这样的风暴会吸收更多的湿气，因此雨雪会比以前的风暴来得更猛烈。
Plastic is burned outdoors and chemical water is poured into rivers, Greenpeace, an environmental group, has found the air, the earth and the rivers in Guiyu badly polluted.
塑料在户外被焚烧，化学药剂被排入河流，环保组织 Greenpeace发现贵屿的空气、土地和河流被严重污染。
Because warm air can hold more moisture than cool air, the relative humidity will be constant only if the amount of water vapor in the atmosphere increases as the temperature rises.
因为温暖的空气比冷空气能容纳更多的湿气，所以只有当大气中的水蒸气量随着温度的升高而增加时，相对湿度才会保持不变。
When driving in a car on a hot summer day, you may see what looks like shimmering water on the road, which, as science tells us, is really just a mirage, an illusion caused by the heating of the air.
在炎热的夏天开车时，你可能会在路上看到闪闪发光的水，但科学告诉我们，这其实只是海市蜃楼，是空气加热造成的幻觉。
They form when sunlight falls on water drops in the air.
当阳光落在空气中的水滴上时，它们就形成了。
If the temperature is below 0℃, water will turn into ice in the open air.
如果温度低于0摄氏度，水在室外就会结冰。
One way to make such fuels is to get CO2 from the air and put it in water.
制造这种燃料的一种方法是从空气中获取二氧化碳并将其放入水中。
Water drops must appear in the air in the opposite direction of the moon.
水滴必须在与月亮相反的方向出现在空气中。
In China, the government is trying to solve not only air and water pollution problems but also noise pollution problems.
在中国，政府不仅试图解决空气和水污染问题，还试图解决噪音污染问题。
If the air in your room is too dry, a smart sprinkler could water your plants by itself when you are not at home.
如果房间里的空气太干燥，智能洒水器可以在你不在家的时候自动给植物浇水。
With an aragonite eye, one index creates an image on the eye in water while the other works in air.
因此，由这种晶体构成的眼睛，可以用一种折射率在水中成像，而用另一种折射率在空气中成像。
The notion that something in the air, water or soil can prolong life is 'nonsense, ' he says.
他说，那些认为长寿与空气、水或者土壤所含物质有关的观点简直就是“胡说八道”。
Environmentalists condemned the decision to allow drilling, saying it would generate industrial levels of noise in the water and pollute both the air and surrounding water.
环保人士谴责允许钻井的决定，说它将在水中造成工业水平的噪音，污染空气和周围水域。
Researchers at the University of Colorado tested 45 showers in five states as part of a larger study of the microbiology of air and water in homes, schools and public buildings.
科罗拉多大学研究人员测试了5个州的45个浴室，这是在居室、学校和公共建筑中空气和水的微生物学更大研究的一部分。
Following 133 hours of firing a beam of intense laser light which created nitric acid particles in the air it resulted in binding the water molecules together to create droplets.
在连续133小小时向空中发射密集激光束从而在空中制造出硝酸粒子后，空气中的水分子凝聚在一起形成了小水滴。
Water in reservoirs behind dams, plus the water used to irrigate nearby land puts more moisture in the air, which falls as precipitation.
大坝后面水库中的储水，加上用来灌溉土地的水，会增加附近地区的潮湿度，使降水量提高。
The fish in the water is silent, the animal on the earth is noisy, the bird in the air is singing.
水里的游鱼是沉默的，陆地上的兽类是喧闹的，空中的飞鸟是歌唱着的。
The hairs flutter in moving water as flags do in moving air, and the way in which they flutter contains information about the direction and speed of the water moving past them.
绒毛在水中就像气流中的旗帜一样摆动，它们摆动的方式包含着流经它们的水流方向和流速信息。
Hence it is understood now, that the particles of water in the air form fog, or, which is the same, clouds, so soon as they come into a colder stratum.
现在我们知道了，空气中雾或者云都是同样的东西，都是空气中的水分突然遇冷以后呈现的状态。
Likewise, fire, air, water their natural position is with earth in sphere at the center then water then air then fire.
同样道理，火，气，水，的自然状态，便是以球状形式围绕着地球，先是水，再来是气，接着是火。
Answer: Radioactive material falling from the air or carried in rain water or snow, can deposit on the surface of foods like fruits and vegetables or animal feed.
答：从空气中或者通过雨水落下来的放射性物质可以沉积到诸如水果和蔬菜等食物的表面或动物饲料中。
Absolute humidity is a measurement of the total amount of water vapor in the air at a given temperature.
绝对湿度是指在给定温度的情况下，空气中所含的水蒸气重量的绝对值。
Sensitive as they were, they were unimpressed by levels of arsenic in drinking water or particulates in the air.
如此敏感的一对鼻孔，居然不曾对饮用水中的砷含量或是空气中的悬浮物做出任何反应。
Organic tissues of living things are fashioned from the elements of air, water and soil which in turn bear the imprints of life.
生物休的有机经组织是由空气、水和土壤中的元素构成，这些元素都带着生命的印记。
There is, in fact, no market mechanism to take account of the cost of polluting the air and water in Hengjiang.
其实，在横江，根本就没有市场机制来顾及当地的空气污染成本和水污染成本。
As the water is agitated, these chemicals are released into the air and then breathed in.
当水被搅动时，就会将这些化学物质释放到空气中然后被人体吸入。
Using a powerful laser, researchers have created water droplets in the air.
研究人员用一个强大的激光发射器在空气中制造出水滴。
Using a powerful laser, researchers have created water droplets in the air.
研究人员用一个强大的激光发射器在空气中制造出水滴。
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