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.
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).
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.
水分子的氢氧健一秒钟之内就会发生万亿次的断裂和重组。
Inless than a trillionth of a second, water molecules are thought tofluctuate between the two states as the hydrogen bonds break and reform.
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.
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.
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.
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.
原子能专家说，核反应堆堆芯的放射线能够把水分子一分为二从而产生氢气。
Nuclear experts say that radiation from the core of a reactor can split water molecules in two, releasing hydrogen.
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.
惊奇的是，即便在直接阳光照射最为强烈的情况下，水分子看起来还是出现了。
In a surprise, it appears that water molecules are present, even in the heat of direct sunlight.
这种细粉末可吸收气体，即通过化学方式与水分子结合，形成水合物。
The result is a fine powder that canslurp up gases, which chemically combine with the water molecules to form whatchemists term a hydrate.
受压水经过半渗透膜，使得水分子能通过，而更大的离子却不会通过。
Pressurized water is passed over a semi-permeable membrane which allows the passage of water molecules while rejecting the passage of larger ions.
在无序区域，水分子之间更为紧密，使他们的密度比以四面体结构排列的区域高。
Inthe disordered regions, water molecules are more closely packed, makingthem denser than regions where the molecules are arranged in atetrahedral structure.
许多不同种类的分子构成了你的咖啡，有水分子，气味分子，牛奶蛋白等等。
Many kinds of molecules make up your coffee There are the water molecules, the flavor molecules the milk proteins, etcetera.
其中第一个步骤就是将水分解为氢和氧，这极其困难，因为水分子非常稳定。
The first of these involves splitting water into hydrogen and oxygen, a notoriously difficult thing to do because water molecules are so stable.
其中第一个步骤就是将水分解为氢和氧，这极其困难，因为水分子非常稳定。
The first of these involves splitting water into hydrogen and oxygen, a notoriously difficult thing to do because water molecules are so stable.
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