These pieces of graphite enveloped uranium rods.

这些石墨里面包覆着铀棒。

The softer the graphite, the darker the pencil's mark. Pencils are labeled accordingly. In the United States, those labels are numbers. International manufacturers use a different system, with HB corresponding to number 2.

石墨越软，铅笔画记越黑。铅笔具有相应的深浅程度标记。在美国，那些标记用数字表示。国际制造商使用不同的系统，就像 HB 就等于 2 号。

She even owned a racquet made out of graphite.

她甚至有一个石墨做的球拍。

A new gray black stainless steel called graphite.

碳纤维为基础的灰黑色不锈钢材质。

The story of the pencil starts with graphite.

铅笔的历史起源于石墨。

Graphite is a key component for EV batteries and nuclear reactors.

石墨是电动汽车电池和核反应堆的关键组成分。

I think there's graphite on the ground in the rubble.

地上的石里好像有石墨。

Engineers stand on top of scaffolding slotting graphite reflectors into place.

工程师们站在脚手架的，石墨反射器插入指定位置。

Different batteries use different combinations of metals, and sometimes non-metals like graphite, but the basic idea is to use a pair of chemical reactions to generate a stream of electrons.

不同的电池使用不同的金属组，有时还有非金属，比如石墨，但基本原理都是利用一对化学反应来产生电子流。

China accounts for at least 85 percent of rare earth refining, 77 percent of cobalt refining, 82 percent of tungsten production, 80 percent of antimony processing capacity, and 90 percent of the world's synthetic graphite production.

中国占全球稀土精炼产能的至少85%，钴精炼产能的77%，钨产量的82%，锑加工产能的80%，以及人造石墨产量的90%。

Air got into the reactor and caused a graphite fire.

空气进入反应堆，导致石墨起火。

If the diamonds came up much slower than that, the gradually-decreasing pressure would let the carbon atoms shift back into other stable forms like graphite.

如果钻石上升速度比上述速度慢得多的话，逐渐减小的压力会碳原子转化为其他稳定的形式，如石墨。

And I was simply filing them down and rubbing some graphite on the spikes so that I thought I would run more effectively.

我只是把它们锉平，在钉鞋上擦一些石墨，这样我就能跑得更有效率。

Black was the most common since it was usually made from grinding soot or graphite, which could be found in a common campfire.

黑色是最常见的，因为它通常是研磨烟灰或石墨制成的，这可以在普通的篝火中找到。

Allotropes of an element can have very different properties from each other (graphite and diamond, for example, are both allotropes of carbon).

一种元素的同素异形体可能彼此具有非常不同的性质(例如，石墨和金刚石都是碳的同素异形体)。

As sun heats the graphite, it creates a pressure difference that pulls water up through the foam pores, like a sponge.

随着太阳不断对石墨进行加热，就会产生一个压力差，而后像挤海绵一样，水分从泡沫孔隙中被挤压出来。

The heat and pressure at depth transform rocks and minerals, which is how graphite becomes diamond and limestone becomes marble.

深处的热量和压力改变了岩石和矿物，这就是石墨变成钻石，石灰岩变成大理石的原因。

But breakthroughs in electric car batteries are on the horizon. A new lithium-ion battery replaces graphite with silicon. That's sand.

但电动车电池的突破就在眼前。一种新型锂离子电池用硅可以用于取代石墨——沙子。

It took the team about a week to produce the braces, which were made of a material called carbon graphite.

该团队花了大约一周的时间制作出这种支架，它是由一种叫做碳石墨的材料制成的。

When the water hits the graphite hot spot, it turns into steam.

当水落在石墨的加热点就会转化成水蒸汽。