And, a lot of the derivations you will see in physics rely on this being able to model as point charges.

然后，你在物理学中看到的许多东西,都是靠以点电荷为模型得到的。

麻省理工公开课 - 固态化学导论课程节选

Nature supplies the standards, the materials, the models, for all the later arts, the city being by nature, man by nature, nature provides the standard.

自然提供了标准，物质，模型，为后来产生的艺术，为城市，为人类的存在，是自然提供了一切标准。

耶鲁公开课 - 政治哲学导论课程节选

So, Lewis structures are really a model for a way to think about what the valence electron configuration is, and as I said, it's not based on quantum mechanics, it's something that Lewis observed far, far before quantum mechanics were discovered.

路易斯结构实际上是一个用来考虑价,电子排布的模型，而就像我说的，它并不以量子力学为基础，而是路易斯在以前发现的,在量子力学出现很早前。

麻省理工公开课 - 化学原理课程节选

What I want this class to be is a class where at least sometimes, like on this homework assignment, I set up a model for you, set up the story for you, and then you have to actually figure out how do I set this up properly and how do I solve it out?

我希望这个课程是至少在某些时候,就像这次家庭作业,我为你们设定一个模型,设定故事情节,然后由你们自己实际操作,如何恰当地设计并解决它

耶鲁公开课 - 博弈论课程节选