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。
Furthermore, if the water ice was mixed in with rock and dust, it would be protected from evaporation.
此外，如果水冰与岩石和灰尘混合在一起，它就不会蒸发掉。
In addition, water heated geothermally can contain salts and toxic materials dissolved from the hot rock.
此外，地热加热的水可能含有从热岩石中溶解出来的盐和有毒物质。
The relative amount of these two kinds of water varies greatly from one kind of rock or sediment to another, even though their porosities may be the same.
这两种水的相对含量在不同的岩石或沉积物之间差异很大，尽管它们的孔隙率可能是相同的。
The water is usually naturally occurring groundwater that seeps down along fractures in the rock; less typically, the water is artificially introduced by being pumped down from the surface.
水通常是自然形成的地下水，沿着岩石的裂缝渗出；不那么典型的是，水是通过从地表抽水而人工引入的。
They occur primarily in regions of recent volcanic activity as hot, dry rock; natural hot water; or natural steam.
地热能主要以干热的岩石、自然热水或自然蒸汽的形式出现在近期火山活动的区域。
A narrow waterfall trickled down the side of the rock, splashing into a pool of water.
一道窄窄的瀑布从石头的边缘流淌而下，溅入一个水池。
Or on his own instinctive cries, like a gulp of surprise at the sight of falling water or a yelp of effort caused by smashing a rock into a skull.
要么基于他自己本能的喊叫，像是看到降水时惊奇地吞咽口水的声音，或是把岩石敲进头骨，使劲叫喊的声音。
Sedimentary rocks—the most common rock type near the surface—are also the most common reservoirs for water because they contain the most space that can be filled with water.
沉积岩——地表附近最常见的岩石类型——也是最常见的储水层，因为它们可以装水的空间最多。
So, what evidence of a liquid water environment did we find in rock samples taking from the oldest rocks on Earth?
那么，在从地球上最古老的岩石中提取的岩石样本中，我们发现了什么液态水环境的证据呢？
They lack water-storing structures, and their existence on rock faces prevents them from tapping groundwater, so they have instead developed the ability to change their metabolism.
它们缺乏储水结构，而且它们长在岩石表面，这阻止了它们利用地下水，所以它们反而形成了改变新陈代谢的能力。
The clear rock magnified the letters, making them appear larger, it's like what happens when a drop of water falls on something, whatever's below the drop of water appears larger, right?
透明的岩石放大了字母，使它们看起来更大，就像一滴水落在什么东西上，在这滴水下面的东西看起来更大，对吧？
Also, in surface water, there is a weak acid, carbonic acid, not sulfuric acid, but carbonic acid that helps dissolve the rock.
另外，在地表水中存在一种弱酸，它是碳酸，而不是硫酸，而且是能帮助溶解岩石的碳酸。
Beneath the Sahara are huge aquifers, basically a sea of fresh water, that's perhaps a million years old filtered through rock layers.
撒哈拉沙漠下面是巨大的含水层，基本上是一片淡水的海洋，那可能是经过岩石层过滤的，已经有一百万年历史。
Both oil and gas are less dense than water, so they generally tend to rise upward through water-saturated rock and sediment.
石油和天然气的密度都比水小，所以二者通常会浮在被水浸泡的岩石和沉积物的表层。
Much of the water in a sample of water-saturated sediment or rock will drain from it if the sample is put in a suitable dry place.
如果把水饱和的沉积物或岩石样品放在合适的干燥的地方，样品中的大部分水将从中流出。
The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.
后两种来源局限于少数区域，在这些区域，地表水通过地下断层或断裂往下渗透，从而接触到被近期的熔岩活动加热的深层岩石。
The developing of dangerous rock is due to release of in-situ stress in rock, aeolation, water erosion and root flerry.
地应力卸荷、风化、流水侵蚀、植物根劈是危岩发育的主要原因。
As cosmic particles enter the atmosphere and bump into atoms of air, water, ice, rock or anything else that happens to stand in their way, they trigger telltale cascades of other particles.
随着那些宇宙粒子进入大气层，并且和空气，水，岩石或别的什么阻挡在他们飞行路径上的东西中的原子碰撞，它们就会触发其他粒子的级联反应。
"When you sail at very high speeds, around 100 km/hour, the water becomes like a rock," he said.
“当你以非常高的速度航行时，大约每小时100公里时，水相对于你来说变得就像是石头，”他说。
Dr Morris explained that the mineral probably came from carbonate-rich water, which interacted with the rock.
莫里斯博士解释说，富含碳酸盐的水和石头发生反应，从而产生了碳酸盐。
With EGS, holes are drilled deep into hot rock and water is injected into the cracks.
而EGS是把孔深钻到炽热的岩石层，然后把水注入岩石之中。
The Las Vegas valley gets its water through two long channels drilled through the rock.
拉斯维加斯位于山谷地带其城市用水来自于两条凿穿岩石的水渠。
Cloaking used special materials to deflect radar or light or other waves around an object, like water flowing around a smooth rock in a stream.
做这件斗篷的材料很特殊，能使包括雷达或光波在内的各种波遇到物体后发生偏转，就象溪流遇到光滑的石头那样。
I tend to use interesting rock formations with water flowing over them in my shots and often the tide dictates which ones are suitable to shoot at any given time.
我喜欢拍摄海水漫过的岩石，在任何给定的时间，潮水都会告诉我那些岩石适合拍摄。
Light is neither absorbed nor reflected by the objects, passing "like water flowing around a rock," according to the researchers.
据研究者称，光既没有被这种材料吸收也未被其折射，仅仅如“激水绕石”那样淌过。
Samples from Delphic spring water and rock from the intersecting faults revealed traces of several chemicals including ethylene.
特尔斐泉水的样本以及断层裂缝岩石的样本中提炼出几种化学物质，其中包括乙烯。
Besides the normal states of surface liquid, vapor, or ice, much water exists locked in rock hundreds of miles deep in Earth's mantle.
除了表面覆盖的江湖海水，水蒸气、冰，大部分水可能被锁在地球的地幔深处。
NEYTIRI DIVES from a rock, slicing into a mirror of water. Jake follows her and.
奈提莉从一块岩石上跳入水中，打破了湖面镜子般的平静。
NEYTIRI DIVES from a rock, slicing into a mirror of water. Jake follows her and.
奈提莉从一块岩石上跳入水中，打破了湖面镜子般的平静。
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