Well, if we just take, for example, MgO, and let's try Mg, magnesium chloride just as an example.

我们以MgO为例，让我们试试Mg，MgCl2也是一个例。

麻省理工公开课 - 固态化学导论课程节选

So let's, in order to fix ideas for this discussion, take an actual example.

为了进一步限定讨论的话题，我们举个真实的例子。

耶鲁公开课 - 公正课程节选

So, for example, in an electrochemical cell, it would be possible to take the sodium ion, give back its electron, and convert it into a metallic sodium, take the chloride ion, remove its electron, and restore chlorine gas.

所以，例如一个电化学的电池，它可能带有钠离子，让它得到电子，把它变成金属钠，得到氯离子，让它失去电子，作为氯气储存。

麻省理工公开课 - 固态化学导论课程节选

Let's take an example of estrogen, for example.

我把雌激素作为例子

耶鲁公开课 - 生物医学工程探索课程节选

So, let's take a look here at an example of an energy diagram for the hydrogen atom, and we can also look at a energy diagram for a multi-electron atom, and this is just a generic one here, so I haven't actually listed energy numbers, but I want you to see the trend.

所以让我们来看看,一个例子氢原子的能量图，我们也可看看一个,多电子原子的能量图，这是一个普通的图谱，我没有列出能量的数字，但是我想让你们看这个趋势。

麻省理工公开课 - 化学原理课程节选

So, for example, it's not just the 2 p that we could actually take an electron from, we could also think about ejecting an electron from the 2 s orbital.

比如，我们不只可以从，2，p，轨道上,打出一个电子，还能考虑从，2，s，轨道上,发射出一个电子。

麻省理工公开课 - 化学原理课程节选