「芯」的读音

暴露的堆芯所发出的热量，瞬间将蒸汽变成过热蒸汽。

The heat from the exposed core soon turns the steam into superheated steam.

功率的激增引起了反应堆的链式反应，反应堆的堆芯燃烧起来。

A surge of power caused a chain reaction that set the reactor core on fire.

原子能专家说，核反应堆堆芯的放射线能够把水分子一分为二从而产生氢气。

Nuclear experts say that radiation from the core of a reactor can split water molecules in two, releasing hydrogen.

That happens because of space issues that you were asked to do that, because you can always assume that all of the core orbitals are already going to be filled.

这是出于空间的考虑,要求你这么做是因为，你总是可以假定所有的,芯电子轨道都已经填满了。

So let's do a quick clicker question, and you tell me how many valence electrons does fluorine have? Remember, valence electrons are different from core, they're only the outer-most electrons in the outer-most shell.

那么让我们来做一个小选择题，请大家来告诉我,氟有多少个价电子，要记得，价电子与芯电子不同，它们是在最外壳层的最靠外面的电子。

we very rarely would see these core electrons actually being involved in any type of a reaction.

我们极少见到芯电子,会参与任何类型的反应。