Professor Orr has developed interesting ways of tagging chemical molecules using existing laboratory lasers.
奥尔教授已经研发出了用现有的实验室激光给化学分子贴标签的有趣方法。
The molecules combine, forming what is called a Schiff base within the protein.
这些分子结合在一起，在蛋白质中形成所谓的希夫碱。
The algae capture the sun's energy by photosynthesis and store it in organic molecules.
藻类通过光合作用吸收太阳能，并将其储存在有机分子中。
Every substance, no matter what it is, is composed of very small particles called molecules.
各种物质，不论它是什么，都是由一些称为分子的很小的粒子构成的。
We think meteors that crashed into the moon or tails of passing comets may have introduced water molecules.
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。
"They are like little factories that spit out biofuel molecules without the need for starch or cellulose, " explains Gibbons.
吉本斯解释：“这就像一个不需要淀粉或者纤维素就能生产出生物燃料分子的小型工厂。”
Before letting its leaves go, the tree dismantles their chlorophyll molecules and ships their valuable nitrogen back into the twigs.
在树叶凋落之前，树会分解叶绿素分子，把有用的氮运回树枝中。
These molecules burn more cleanly than gasoline, in part because they have fewer, if any, carbon-carbon bonds, and the hydrocarbons they do emit are less likely to generate ozone.
这些分子燃烧起来比汽油更干净，部分原因是它们的碳-碳键更少（如果有的话），而且它们排放的碳氢化合物不太可能产生臭氧。
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.
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。
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.
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。
Whereas molecular gastronomy is concerned primarily with the food or "smell" molecules, neurogastronomy is more focused on the receptor molecules and the brain's spatial images for smell.
分子美食学主要关注食物或“气味”分子，而神经美食学更关注受体分子和大脑对气味产生的空间图像。
Bacteria are little geniuses at identifying molecules.
细菌在识别分子上是天才。
These are molecules that carry information from one nerve cell to another.
神经递质是一类分子，他们能在神经细胞之间携带并传递信息。
To model the behaviour of humans en masse, treat them as people, not molecules
在为人类的全体活动建立模型时，要将他们看作是“人”，而不是“分子”。
If they succeed, molecules of long-dead organisms may one day help save living ones.
如果他们获得成功，灭绝很久的生物的生物分子可能有一天会帮助我们来拯救这些濒临灭绝的物种。
The most powerful electron microscopes can resolve molecules and even individual atoms.
分辨率最高的电子显微镜可以分辨分子甚至单独的原子。
In theory, there are more possible moves on a chess board than molecules in the universe.
理论上，国际象棋的棋盘上可能的走法，要比整个宇宙的分子数目还要多。
Serotonin is one of the messenger molecules that carry signals between nerve cells in the brain.
血清胺是大脑中一种在神经细胞间传递信号的信号分子。
The kind that we breathe is made of diatomic molecules, which means each molecule has two atoms.
氧气是双原子分子，即每个氧分子由两个氧原子构成。
The water molecules will eventually evaporate, condense, and recycle back to Earth as precipitation.
水分子会蒸发，凝结，形成降水，重新进入地球的水循环系统。
Such molecules could be applied directly to an injured heart and turn fibroblasts into cardiomyocytes.
这些小分子可以被直接用于受损心脏，将成纤维细胞转化成心肌细胞。
And all cells have enzymes called isomerases, which flip certain molecules into their mirror versions.
异构酶(isomerase)是所有细胞中都存在的一类酶，它可以将某些分子转化为镜像分子。
Whether for a new drug or solar cell, we constantly strive to design and build intricate new molecules.
不管是为了制造新药物还是太阳能板，我们不断地奋力设计、建造复杂的新分子。
Nature only USES a restrictive set of molecules and chemical reactions out of many thousands available.
自然界中有成千上万的分子组成形式和化学反应形式，但构成生命的却只是有限的分子和化学反应。
Scientists still have a lot of work to do before the color-changing molecules can be used outside the lab.
在这种变色分子走出实验室投入应用之前，科学家们仍有大量工作要做。
Water molecules join together in a rigid pattern - a tiny ice structure that's the heart of a snow crystal.
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。
All life on Earth needs water, carbon-based organic molecules, and an energy source, either solar or chemical.
地球上所有的生命都需要水、碳基有机分子和某种能量来源——不是太阳能就是化学能。
All life on Earth needs water, carbon-based organic molecules, and an energy source, either solar or chemical.
地球上所有的生命都需要水、碳基有机分子和某种能量来源——不是太阳能就是化学能。
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