大量的水分被蒸发到了空中。
他们可以延伸成千上万公里，这是其一，同时他们也能移动如此大量的水分，虽然有时候通过飓风的力量确实可以如此，但是在几千尺高的空中简直令人无法想象。
They can stretch thousands of miles, for one thing, and move vast amounts of water, sometimes with winds of hurricane force, but focused a few thousand feet above the earth's surface.
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。
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.
另一方面，如果你见到一条常常的痕迹在空中持续一段很长的时间，这意味着大气层的水汽已经饱和不能在继续吸收多余的水分了。
On the other hand, if you see a contrail that lasts a long time, this means the upper atmosphere is already saturated with as much water vapor as it can hold.
树木依靠树根来获取水分，通过树叶从空中吸收二氧化碳。
Trees get water through their roots and, primarily through their leaves; they draw carbon dioxide from the air.
亚马逊河每年产生并输入大气层中的水分达8万亿吨左右，形成一条连起世界各地热带雨林的空中汽带。
The Amazon generates and pumps into the atmosphere some 8 trillion tonnes of water a year, feeding into an aerial belt of water vapour that connects tropical forests across the globe.
一道彩虹是一种光学和气象现象，导致光频谱时出现在天空中的太阳照耀到液滴的水分在地球的大气层。
A rainbow is an optical and meteorological phenomenon that causes a spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere.
一道彩虹是一种光学和气象现象，导致光频谱时出现在天空中的太阳照耀到液滴的水分在地球的大气层。
A rainbow is an optical and meteorological phenomenon that causes a spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere.
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