There's a lot of hot water vapour.

有很热蒸汽。

In short, as part of the process of photosynthesis plants release water vapour from their leaves into the atmosphere.

简单来说就是光合作用的一部分过程，植物将叶片中的蒸气释放到大气中。

Researchers discovered that in tropical atmospheres, cold air rises because of the lightness of water vapour.

研究人员发现在热带大气中，由于蒸气很轻，所以冷空气会上升。

Water vapour condenses to form clouds.

蒸汽凝结成云。

About 3.8 billion years ago, Earth's surface had finally cooled to the point that water vapour turned to liquid.

大概在三十八亿年前，地球表面终于冷却到蒸气变成液体的程度。

They were in time to produce carbon, nitrogen, water vapour and other gases, which were to make the earth's atmosphere.

最终碳、氮气、蒸气和种气体，从而形成地球的大气层。

It is generally accepted that when water vapour ascends in the process of cloud formation, it condenses onto dust particles.

人们普遍认为，在云的形成过程中，蒸气上升，凝结在尘埃颗粒上。

A relative humidity of 100% means the air in question is holding as much water vapour as it possibly can.

100%的相对湿度意味着空气中含有尽可能的蒸气。

The ice caps start to melt, releasing water vapour.

冰帽开始融化，释放出蒸气。

Water vapour, like carbon dioxide, is a greenhouse gas.

蒸气，像二氧化碳一样，是一种温室气体。

Water vapour is a powerful greenhouse gas.

蒸气是一种强大的温室气体。

The water vapour spat out by the volcanoes allowed the water trapped in the Earth's bowels to make its way to the surface.

火山喷出的蒸气使得地球内部的得以流到地表。

When humid air hits a surface colder than it is, the water vapour it carries condenses onto that surface as myriad tiny droplets.

潮湿的空气接触到比自身更冷的表面时，它携带的蒸气会凝结到该表面上，形成无数微小的滴。

Deep beneath the earth's surface, magma traps carbon dioxide, sulphur gases and water vapour among other gases inside it.

在地表深处，岩浆中困住二氧化碳、硫化物气体和蒸气等气体。

The Hunga eruption is thought to have increased the amount of water vapour in the stratosphere by 13%.

洪加火山爆发被认为使平流层中的蒸气含量增加13%。

The idea is to test the effects on the atmospheric window of various pollutants, and also of water vapour, by releasing them into the building.

想法是把激光束释放到建筑空间来测试不同污染物和蒸气对大气窗口的影响。

Enceladus spews out 300 kilos of water vapour up to 10,000 kilometres above its surface - 20  times its own diameter.

土卫二喷射出高达300公斤的蒸气，高度可达表面上方10,000公里——相当于自身直径的20倍。

The twist lies in the possibility of a remnant atmosphere saturated with water vapour, which is much more resistant to photo-evaporation.

转折点在于可能存在一层富含蒸气的大气层，这层大气层对光蒸发的抵抗力要强得。

As it orbits Saturn, the frequent plumes of water vapour that erupt leave  behind a doughnut-shaped cloud that feeds one of Saturn's icy rings.

当它绕土星运行时，频繁喷发的蒸气羽流会留下一个甜甜圈形状的云团，这个云团为土星的一个冰环提供物质来源。

But as the surface eventually cooled, this water vapour condensed and settled upon the crust, pooling in lower lying areas to form  the oceans.

但随着地表最终冷却，这些蒸气凝结并沉积在地壳上，在低洼地区聚集形成海洋。