After all,using cars to move goods causes a lot of carbon air pollution and traffic jams."

VOA: standard.2010.01.04

So in terms of the first step of skeletal structure, this is actually going to be easier because we don't have a central atom, we just have carbon and nitrogen here.

对于第一步画出骨架，其实比刚才更容易,因为我们没有一个中心原子，我们这里只有碳和氮两个原子。

麻省理工公开课 - 化学原理课程节选

So let's take the case of acetylene where we have two carbon atoms that are going to be triple bonded to each other, each are bonded to a carbon and then to one hydrogen.

让我们来看一看乙炔的例子,我们有两个碳原子,成三键，每个碳和一个碳一个氢相连。

麻省理工公开课 - 化学原理课程节选

In Washington, the Environmental Protection Agency on Monday declared carbon dioxide and other greenhouse gases a threat to public health.

VOA: special.2009.12.12

This blue chain here goes from 5' carbon all along the chain and there's a 3' carbon left open at the bottom.

这条蓝色的链,从5'碳开始一直向下延伸,以3'碳做为链的末端

耶鲁公开课 - 生物医学工程探索课程节选

Anyone who uses a device that burns fossil fuel must inspect the equipment carefully to reduce chances of carbon monoxide escaping.

VOA: special.2010.02.02

But, if you look more carefully, you will find that this is a blend of three different forms of carbon.

但是，如果你们再认真一点，会发现,它是三种形式的碳的混合物。

麻省理工公开课 - 固态化学导论课程节选

Medical experts say small amounts of carbon monoxide over a long period of time can greatly harm an unborn baby.

VOA: special.2010.02.02

Again, leaving aside the science, about which I'm sure some of you know more than me here, the issue of carbon emissions is a Prisoners' Dilemma.

抛开科学层面来说,我相信在座的一些同学比我知道的还多,碳排放问题也是个囚徒困境

耶鲁公开课 - 博弈论课程节选

A carbon footprint is the amount of carbon dioxide pollution that we produce as a result of our activities.

VOA: special.2011.04.05

This is very easy molecule because we know exactly where to put them without even having to think, we only have one option, and we'll make a triple bond between the carbon and the nitrogen.

这个分子非常简单,因为我们知道应该把它们放在哪里,甚至不用去想，我们只有一个选择，我们将在碳与氮之间形成一个三键。

麻省理工公开课 - 化学原理课程节选

They died because they did not know that burning wood products creates a deadly gas - carbon monoxide.

VOA: special.2010.02.02

Benzene is a ring that's made up of six carbon atoms and six hydrogen atoms.

苯环是一个由六个碳原子,和六个氢原子组成的环。

麻省理工公开课 - 化学原理课程节选

The effort will help reduce carbon dioxide releases from the Empire State Building by more than one hundred thousand tons a year.

VOA: special.2009.05.22

So either a potassium cyanide or sodium cyanide, these are used in synthesis in terms of making carbon-carbon bonds.

因此无论是氰化钾还是氰化钠，都被用来在合成过程中,制造碳碳键。

麻省理工公开课 - 化学原理课程节选

If you suspect carbon monoxide is a problem in your home, you might call your local fire department.

VOA: special.2010.02.02

And because, of course, we have this carbon here what you end up doing is adding a carbon to your molecule.

因为，当然，我们这里有一个碳,接下来需要做的就是在你的分子中再加上一个碳。

麻省理工公开课 - 化学原理课程节选

However,each time a plant takes in one molecule of carbon dioxide gas, it loses hundreds of water molecules.

VOA: special.2010.01.26

As we see a little bit later, I could talk about the carbon-hydrogen bond in methane where there is a plurality of bonds. In this case, there is only the one bond but I just want to get the formulas.

因为我们后来看到一点点，我能讨论甲烷中的碳氢共价键,那有许多共价键，这种情况下，这只有一条共价键,但我想得到氟。

麻省理工公开课 - 固态化学导论课程节选

A new report says mangrove forests store more planet-warming carbon dioxide than almost any other ecosystem on Earth.

VOA: special.2011.05.10

So let's take a look at what actually happens if we're talking about a carbon-carbon double bond, we're going to have a double bond.

让我们来看一看碳碳双键的情况,例如在乙烷里，我们有个双键。

麻省理工公开课 - 化学原理课程节选

For example, the insects can smell carbon dioxide in the breath of a person or animal from as far away as sixty meters.

VOA: special.2009.05.26

And so, if we go and we draw this again, if this is the carbon here, hydrogen, hydrogen, hydrogen, hydrogen like this, then this is going to be a little bit plus.

如果我们继续，我们将再次画下这个，如果这儿是碳，氢，氢，氢，氢，就像这样，这里有些正电荷。

麻省理工公开课 - 固态化学导论课程节选

An older adult with health problems may suffer the effects of carbon monoxide more quickly than a younger person with no health problems.

VOA: special.2010.02.02

And as you know, carbon dioxide is implicated as a greenhouse gas.

你知道的，二氧化碳意味着温室气体。

麻省理工公开课 - 固态化学导论课程节选

A few years ago, America's Centers for Disease Control studied deaths linked to carbon monoxide poisoning.

VOA: special.2010.02.02

The phosphate is linked to this carbon on the pentose, and notice that there is a number on this carbon, it's called - it's the 5' carbon.

磷酸基连接在戊糖的一个碳原子上,注意在这个碳上有个数字,它叫做5'碳

耶鲁公开课 - 生物医学工程探索课程节选

You can do a number of things to protect yourself from the effects of carbon monoxide.

VOA: special.2011.01.25

So if you think about any one of these carbon-carbon bonds, what type of a bond would you expect that to be?

如果你们考虑任何一个碳碳键，它是什么类型的？

麻省理工公开课 - 化学原理课程节选

You have a molecule where we put the carbon in the center, and we go up like this, like this, and out the back.

你有一个分子,我们把碳放在中间，现在我们得到了。

麻省理工公开课 - 固态化学导论课程节选