The researchers combined the two compounds, and placed the mixture on breast cancer cells in a laboratory.

VOA: special.2010.06.01

It's one of the only compounds, there's only I think three, where the density actually goes down when it freezes.

它是我见过的，唯一一个，在降温时密度下降的化合物。

麻省理工公开课 - 固态化学导论课程节选

So, in other words, what happens if we put a bunch of elements, compounds into a reactor but they are not in the balanced amounts?

换句话说，如果我们将一堆的元素，放到一个反应器里面的话,而他们不是平衡时的比例会发生什么呢？

麻省理工公开课 - 固态化学导论课程节选

Fuller found it in nature. It appeared in the shapes of organic compounds and metals.

VOA: special.2010.05.30

And for any of the other compounds. So in other words, by defining that reference state, we can then figure out or measure heats of formation of a vast number of compounds.

对吧？对于任何其他的,化合物也是一样，所以换句话讲，定义了这个参考状态,我们就能算出或测量许多。

麻省理工公开课 - 热力学与动力学课程节选

Researchers in Melbourne hope to isolate the most effective compounds for use in a potential vaccine.

VOA: standard.2010.01.20

In fact, that's their preferred state is suspended in a fluid where nutrients are widely available to them, and where they can swim from one spot to another in order to get the nutrients they need, or in order to run away from toxic compounds.

事实上,细菌更喜欢生活在,营养丰富易得的悬浮液中,它们可以从一个点游动到另一点,以获取所需营养,或逃离有毒物质

耶鲁公开课 - 生物医学工程探索课程节选

"Right now we're mostly sampling for hydrocarbons and other bacteria, but what we would like is expand into some other chemical compounds that may be contained within the dispersants."

VOA: standard.2010.06.01

Many personal and place names in the patriarchal narratives are Israel Ishmel Beth-el compounds in which one element is El. Israel, Ishmael, Beth-el.

在宗法的叙述中，很多人名与地名,组成中都有El这一元素。

耶鲁公开课 - 旧约导论课程节选

If you want to understand whether compounds form or not look only at the valence shell.

如果你想理解化合物是否形成,而不仅仅只是看看价层。

麻省理工公开课 - 固态化学导论课程节选

We can tabulate them. We can know them, and then when we have reactions that inter-convert different compounds, we can calculate the heat of reaction is just the difference between the heat of formation of the reactants, and the heat of formation of the products, right.

种化合物的生成热，可以把它们列成表,可以认知它们，而当我们要处理，在不同化合物间转变的反应时,我们只要计算反应物和,生成物的生成热之间的不同,就能计算出反应热。

麻省理工公开课 - 热力学与动力学课程节选