Once the core is nearly pure carbon, that power is switched off.

一旦其核心接近纯碳，它的功能来源就会被切断。

Yet the diamond is made of pure carbon, just as black-lead is.

可是，钻石却是纯碳做的，就跟石墨一样！

Some of the available data suggests the exoplanet may have an atmosphere of pure carbon dioxide.

一些可用的数据表明，这颗系外行星可能有一个由纯二氧化碳组成的大气层。

Like graphite and diamond, the two forms of pure carbon, silicons and it's oxides are network solids.

就像石墨和金刚石这两种碳单质，硅和它的氧化物也是网状结构的固体。

What is left behind is pure carbon black.

留下的是纯炭黑。

Diamonds are a hard, clear form of pure carbon called a crystal.

钻石是一种坚硬、透明的纯碳，称为晶体。

The remaining material from burning wood is called char or charcoal, which is 70 to 80% pure carbon.

燃烧木材的剩余物质称为木炭或木炭，其中含有 70% 至 80% 的纯碳。

So first, let's look at carbon. Pure carbon can bond with itself in two different ways.

首先，让我们看看碳。 纯碳可以通过两种不同的方式与自身结合。

It also one of the rarest in the world, due to the fact that it's emerald-cut and formed with pure carbon.

它也是世界上最稀有的宝石之一，因为它采用祖母绿切割并由纯碳制成。

But not just any old pure carbon, pure carbon with a very fine microscopic lattice-like structure that actually turns out to be absolutely essential to the functioning of gunpowder.

但不仅仅是任何旧的纯碳，具有非常精细的微观晶格状结构的纯碳实际上对火药的功能是绝对必要的。

Even though the graphite in the pencil is made of the exact same thing as diamond, pure carbon atoms, they're different from each other in almost every possible way.

尽管铅笔中的石墨是由与金刚石完全相同的纯碳原子制成的，但它们几乎在所有可能的方面都彼此不同。

You learned that both diamonds and graphite are network solids made up of pure carbon atoms but that the arrangement of those atoms in 2 and 3 dimensions respectively give them completely different properties.

您了解到金刚石和石墨都是由纯碳原子组成的网络固体，但这些原子在 2 维和 3 维中的排列分别赋予它们完全不同的特性。