Graphene is a flat sheet of carbon just one atom thick—with the carbon atoms arranged in a honeycomb lattice.

石墨烯是一种只有单原子厚度的碳原子平面层——碳原子按蜂窝状晶格排列。

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A tax on upstream carbon sources is one easy way to put a price on carbon emissions, although some countries may wish to use other methods, such as emissions trading schemes.

对上游碳资源征税是为碳排放定价的一种简单方法，尽管一些国家可能希望使用其他方法，例如碳排放交易计划。

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The secret of the machine lies in the aerodynamic shape of the one-piece, carbon-fibre frame.

该机器的秘密在于其一体式碳纤维外壳的流线型设计。

《柯林斯英汉双解大词典》

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

VOA: special.2010.01.26

You bring iron ore from one part of the planet, carbon, limestone, you put it into this reactor and you ship this all over the world.

你得到钢铁从地球的一个地方，还有碳，石灰岩，将它们放入这个反应器,你将它运送到世界各地。

麻省理工公开课 - 固态化学导论课程节选

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

This was the discovery of graphene, a form of carbon one atom thick.

ECONOMIST: The 2010 Nobel prizes

There are many different isotopes of carbon and one that we have probably heard of is in the form of carbon-14, known for radio-carbon dating, but where does this radioactive isotope come from?

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The nanotech buzz grew louder in the early 1990s as scientists discovered "carbon nanotubes, " soda straws of carbon just one or two nanometers wide.

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