Steam condenses into water when it cools.
蒸汽冷却时凝结为水。
Then it snows because as the air rises, it cools off and loses its capacity to hold water vapor.
然后就会下雪，因为当空气上升时，它就会冷却并失去保持水蒸气的能力。
The physicist Fabian reasoned that as intergalactic gas cools, the cooler gas shrinks inward toward the center of the galaxy.
物理学家费边推断，当星系间的气体冷却时，较冷的气体向星系中心收缩。
The Romans observed that, when volcanic ash mixes with water and then cools, it gets extremely hard and almost impossible to break up.
罗马人观察到，当火山灰与水混合然后冷却，火山灰变得非常坚硬，几乎不可能分解。
Meanwhile, its place is taken by hotter intergalactic gas from farther out on the edge of the galaxy, which cools as it is compressed and flows into the galaxy.
与此同时，它的位置被更热的星系间气体所取代，这些气体来自更远的星系边缘，在被压缩的过程中冷却并流入星系。
The lotion cools and refreshes the skin.
润肤液使皮肤凉爽清新。
You'd better wait for a while until your body cools down.
你最好等到你的身体凉快下来。
Another possibility is that the sinking plate cools the neighboring mantle and produces convection currents that move the plates.
另一种可能是下沉的板块冷却了邻近的地幔，并产生对流，使板块移动。
It is an increased area of low thick clouds, the type that reflects a rare portion of solar energy back to space and cools the Earth.
它是一片变大的低厚云层，这种云层将少量的太阳能反射回太空，为地球降温。
Certain "misplaced" volcanoes far from plate edges result from a second, independent mechanism that cools the deep interior of Earth.
某些远离板块边缘的“错位”火山是由另一种独立机制造成的，这种机制能够使地球内部深处的温度降低。
Like when you walk outside on a hot day, you perspire, and your body cools itself down, a classic example of how a mammal regulates its own body temperature.
比如，当你在炎热的天气在户外行走，你会出汗，你的身体会自我降温，这是哺乳动物如何调节自身体温的典型例子。
Oriented to the prevailing wind, the front wall of perforated cardboard, moistened and cooled by a trickle of seawater pumped in, cools and moistens hot air blowing in.
盛行的风穿过带孔的纸板墙，注入凉爽湿润的海水，清爽潮湿的热风也涌了进来。
Cryogenic system cools the magnets to the temperature 516f.
低温系统需要把磁体冷却到516f的温度。
As the molten rock reaches the crust, it quickly cools and hardens.
熔岩到达地壳时，迅速冷却、硬化。
Falling rain cools the air as it descends. This creates downward air currents.
降雨冷却了空气，这就向下产生了气流。
Inevitably there will be tears; if the market for public offerings cools, expect howls.
不可避免会有眼泪；如果公开上市的市场降温，那么期待哀号吧。
Instead the failed star ultimately cools and emits most of its light at infrared wavelengths.
因此这颗不成熟的恒星最终将会冷却并在红外波段发射出其大部分的光芒。
Spicy (hot to the taste) food increases perspiration which cools the body as it evaporates.
辛辣的食物能够促进排汗，随着汗液蒸发，身体也就凉快下来了。
As the fireball cools, the vaporized materials in it condense to form a cloud of solid particles.
当火球冷却时，内部的气化物质压缩形成固态微粒云。
So when I expand this gas adiabatically and it cools down, why do you think it might cool down?
现在我们知道了气体绝热膨胀时，温度会下载，为什么会降温？
Icy water from a nearby river then cools the gas back to liquid form, to start the cycle again.
附近冰冷的河水可用来将这些气体重新液化，从而循环利用。
Sweating cools the body down, but if you lose too much water this way, you could get dehydrated.
流汗使您的身体降温，但是如果您失去太多的水份，您可能会脱水。
This feels good and also, if you're having trouble sleeping because you're hot, it cools you down.
这会让你感觉很舒服，而且，如果你睡不着是因为太热了，这招有很好的降温作用。
Ahh! There's nothing that cools you off better in the summer than a dip in the cool swimming pool.
炎炎夏日，比泡在凉爽的游泳池更凉爽的办法也没有了。
Clouds form when humid air cools enough for water vapor to condense into droplets or ice crystals.
当潮湿空气遇冷降至一定温度时，其中包含的水蒸气便聚集成小水滴或小冰晶，它们组成了云。
Water feels good when we're thirsty, cools us when we're hot, looks great in a pond, a lake, a cloud.
当我们口渴的时候，水就如甘露一样。当我们炎热的时候，水又能够让我们凉爽。池塘、湖泊、云朵中的水看起来都很棒。
It happens on hot days more than on cold, which leads to speculation that the action cools the brain.
热天比冷天打哈欠多，人们猜测，这种动作能给大脑降温。
It happens on hot days more than on cold, which leads to speculation that the action cools the brain.
热天比冷天打哈欠多，人们猜测，这种动作能给大脑降温。
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