水分子由两个氢原子和一个氧原子构成。
A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
两个氢原子和一个氧原子结合组成一个水分子。
Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.
我们认为，撞击月球的流星或经过的彗星尾巴可能会留下一些水分子。
We think meteors that crashed into the moon or tails of passing comets may have introduced water molecules.
因此，我们的身体不断地把旧物质替换成新的，就像一个喷泉，或多或少地保持着它的形式和运动，但其中的水分子总是不同的。
Thus our bodies continuously exchange old substance for new, just like a spring which more or less maintains its form and movement, but in which the water molecules are always different.
只要找到了通向月球两极附近陨石坑底部的路，这些水分子就会永远冻结，因为这些陨石坑的底部总是在阴暗处。
Any water molecules that found their way to the floors of craters near the moon's poles, that water would be perpetually frozen, because the floors of those craters are always in shadow.
从树梢蒸发的水并没有彻底地分解，而是拉住了剩下的水分子，这种拉拽作用从一个分子延伸到另一个分子，一直拉到根部。
Instead of making a clean break, water evaporating from treetops tugs on the remaining water molecules, with that tug extending from molecule to molecule all the way down to the roots.
浮力不是单个水分子的性质。
其余的水分子变成仍有用的一对氧原子。
the rest of the water molecule becomes a pair of hydrogen atoms, which is also useful).
可这些水分子怎么可能存活下来呢？
现在，研究人员已经能应用一个足球烯困住单个水分子。
And now researchers have used one to trap a single molecule of water.
让我们看看水分子。
让我们看看水分子。
当中微子与水分子碰撞后辐射出光，再被传感器记录下来。
The neutrinos impact water molecules and the sensors record the pattern of light radiated by the collisions.
当一个中微子与一个水分子相互作用，另一个粒子就产生了。
When a neutrino interacts with a water molecule another particle is generated.
水分子粘合在一起是因为水分子间有轻微的作用力。
Water molecules stick together, because they carry a slight charge on each end.
不停变化的水分子瀑布在龙卷中旋转，时刻改变着漩涡的形状。
An ever changing cascade of water molecules swirls through the tornado, transmuting the whirlpool's being from moment to moment.
基于任何一种定义，海洋都是复杂的；在这个例子中，实体是水分子。
The ocean is complex by any definition; in this case the entities are water molecules.
水分子连接成坚固的结构排布，这一小小的冰结构是雪花晶体的核心。
Water molecules join together in a rigid pattern - a tiny ice structure that's the heart of a snow crystal.
其它促成催化的因素来自结合水分子，金属离子或其它因子。
Additional contributions to catalysis can come from bound water molecules, metal ions, or other factors.
而这些微粒使水分子结合在一起，形成水滴，防止再次蒸发。
These particles then allowed water molecules to bind together, forming droplets and avoiding re-evaporation.
地核中可能有巨量的氢（水分子的一种组分）或者完全干燥。
The core could be very, very rich in hydrogen (a water ingredient) or totally dry.
看来行星快完全成型的时候，是需要一些水分子做出牺牲的。
Seems that having water when a planet's finished requires sacrificing some in the process.
一项新研究表明，人工照明系统阻碍了空气中水分子的形成。
New research shows that artificial lights prevents these molecules from forming.
水分子会蒸发，凝结，形成降水，重新进入地球的水循环系统。
The water molecules will eventually evaporate, condense, and recycle back to Earth as precipitation.
人工照明系统阻碍了空气污染物与水分子的结合，起到了净化空气的作用。
Artificial lights block formation of molecules that bond with air pollutants to clear the air.
他们发现反射的光线波谱中缺少红外线波长——这段光线被水分子吸收了。
The reflected light was found to be missing infrared wavelengths that are absorbed by water molecules.
油能与水分开，是因为油分子之间的作用比油水分子间的作用强。
Oils segregate out of water because the oil-oil interaction is more favorable than the oil-water interaction.
研究人员用聚焦的铯离子束将水分子自包裹体中打出并用质谱仪测量其数量。
The researchers used a focused beam of caesium ions to dislodge molecules of water from the inclusions and measured the amount with a mass spectrometer.
将水蒸馏去除杂质的时候会用到一种只过滤水分子的特制网状设备。
The water is distilled and is totally freed from any substances with the help of a special mesh-work that filters only water molecules.
将水蒸馏去除杂质的时候会用到一种只过滤水分子的特制网状设备。
The water is distilled and is totally freed from any substances with the help of a special mesh-work that filters only water molecules.
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