有机化合物的分子里含碳。
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。
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清洁，部分原因是它们的碳-碳键更少或者不存在，而且它们排放的碳氢化合物产生臭氧的可能性更小。
These molecules burn more cleanly than gasoline, in part because they have fewer, if and, carbon-carbon bonds, and the hydrocarbons they do emit are less likely to generate ozone.
这种剧毒的碳化合物碰巧是非常活泼的，这使得它能够锁定在非常复杂但是稳定的其他分子链中。
This extremely poisonous carbon compound happens to be very reactive, allowing it to lock in hugely complex but stable chains of other molecules.
这样的分子称为内消旋化合物。
具体来说，有关的细胞是负责制造多巴胺的原始化合物，多巴胺是在产生满足感中充当重要角色的信号分子。
Specifically, the cells in question were the ones responsible for making the precursors of dopamine, a signalling molecule with a well-established role in generating the sensation of pleasure.
土卫六拥有浓厚的大气层和疯狂世界似的气候特征：有毒的风和由碳氢化合物组成的雨水。同时，土卫六海充满着各种复杂的化学成份和有机分子。
Titan, with a thick atmosphere and a bizarro-world form of weather featuring toxic winds and hydrocarbon rain, is home to a mix of complex chemistry, complete with organic molecules.
最后是一种叫做油母质的大分子化合物。
And macromolecular clumps of organic material called kerogen.
这个自然过程产生的一系列长短不同的碳氢化合物，和柴油中的碳氢化合物分子相当。
The natural process produces a collection of hydrocarbons of various lengths that are comparable to the hydrocarbon molecules in diesel.
这种剧毒的碳化合物碰巧是非常的活泼的，这使得它能够锁定在非常复杂但是稳定的分子链中。
This extremely poisonous carbon compound happens to be very reactive, allowing it to lock in hugely complex - but stable - chains of other molecules.
在他们的研究中，这些化学家创造了两个分子，它们可以相遇并交换电子，但并不能形成新的化合物。
In their research, the chemists created two molecules that could meet and exchange electrons but not unite to form a new compound.
电子束可以把污染物分解成不同的分子化合物，从而帮助清洁水质和空气。
Beams of electrons can help clean water and air by breaking down pollutants into different molecular compounds.
最新的谜题是过氧化物，这是一种氧分子，它可以与一些光敏蛋白质化合，在眼球中形成一个罗盘，让鸟儿们可以看到地球的磁场。
The latest piece of the puzzle is superoxide, an oxygen molecule that may combine with light-sensitive proteins to form an in-eye compass, allowing birds to see Earth's magnetic field.
这样就能够打断碳水化合物长链来形成小而可用的分子，而同时将生物燃料中的氧移除并保持住其中的能量成分。
It was thus able to break down long carbohydrate chains to form small, useable molecules while simultaneously removing the oxygen and maintaining the energy content of the biofuel.
但那些英国的饮茶人士还算走运，普鲁士蓝是一种化合物分子，它在人体中几乎没可能释放出氰根离子。所以这种物质最终将安全无害的从人体中排出。
Fortunately for the tea drinkers of Britain, Prussian blue is a complex molecule, so it is almost impossible to release the cyanide ion from it and the poison passes harmlessly through the body.
一餐热血本应使蚊子的消化酶变性，但蚊子的其他分子却保护着这些化合物。
A hot blood meal should denature mosquito digestive enzymes, but other mosquito molecules protect those compounds.
在几年之内，通过分离纤维素(植物中含量最丰富的分子)并将其转化为简单的碳氢化合物，我们就可以将农业废料变成燃油了。
Within a few years we will be able to turn agricultural wastes into liquid fuels by splitting cellulose, the most abundant molecule in plants and trees, into simple hydrocarbons.
我们目前已知甲醛在宇宙分子云里面是很常见的，所以我们也可以认为早期的地球上有很多这种重要的化合物。
We know that formaldehyde is common in cosmic molecular clouds, so there's good reason to think Earth had plenty of this vital compound.
这主要是因为它是一种大分子物质，要穿过保护大脑免受血液中可能有害化合物入侵的血脑屏障很困难。
This is mainly because it is a large molecule, and has difficulty passing through the blood-brain barrier which protects the brain from potentially harmful compounds in the blood.
例如，“裂解”在催化剂和加热下，将大分子的碳氢化合物破坏成小的。
For example, "cracking" involves breaking larger hydrocarbons into smaller ones with either heat or catalysts.
为了消化碳水化合物，你的身体需要分解每个碳水化合物成单糖分子，这样才能将其运输到血液中。
To digest a carbohydrate, your body needs to break each carbohydrate down into single sugar molecules, since this is the required size for sugar to be transported into the bloodstream.
化学家们在实验室合成有机化合物的时候，常常会得到一堆分子：一半右旋，一半左旋。
When chemists synthesize organic compounds in the lab, they often wind up with a mix of molecules: half are right-handed, and half are left.
但是一项新的研究声明科学家们过于注意有机分子(地球上的生命可能是由此而突然出现的)，可能因此忽略了几百万种其他的宇宙化合物。
But a new study says that by focusing on the organic molecules by which life on earth might have been jumpstarted, those scientists missed possibly millions of other cosmic compounds.
任何一种简单醇类都是有大量的碳分子和氢分子(如同碳氢化合物，譬如汽油)以及单个氧原子组成。
Any simple alcohol is composed of a number of carbon and hydrogen atoms (like a hydrocarbon such as petrol) together with a single oxygen atom.
简单碳水化合物也被称作“单糖”，由一个或两个糖分子组成。
Simple carbohydrates are classified as “Monosaccharides” and chemically consist of one or two sugar units.
石油先在一蒸发器内加热，从高沸点的大分子碳水化合物中分离出低沸点的小分子碳水化合物。
The petroleum is first heated in a boiler to separate the smaller hydrocarbons with low boiling points from the larger hydrocarbons with high boiling points.
一顿含丰富碳水化合物的大餐，可以让你的血糖水平快速上升，那会促进糖分子和蛋白质，像皮肤必须的胶原所结合，从而毁坏皮肤。
A carb rich diet causes rapid elevation of blood sugars which promotes glycation where sugar molecules bind to a protein such as skin collagen and damage it.
真正让人意想不到的是，他们在研究中发现了基本元素在各个不同加工阶段的形态，包括最简单基础的分子和最复杂的化合物。
What was unexpected, however, was that they saw all the materials in various stages of development, from their simplest forms to their most complex ones.
真正让人意想不到的是，他们在研究中发现了基本元素在各个不同加工阶段的形态，包括最简单基础的分子和最复杂的化合物。
What was unexpected, however, was that they saw all the materials in various stages of development, from their simplest forms to their most complex ones.
应用推荐