由于它们的尺寸，这些模型不是很灵活。

Because of their size, these models are not very flexible.

youdao

卢卡斯接着问这些模型是否可以用来预测新政策的影响。

Lucas then asked whether these models could be used to predict the impact of new policies.

youdao

这些模型如今都陈列在总统办公室的书架上，我每天都会看到。

These models rest on the bookshelves in the Oval Office, and I see them every day.

youdao

These are the planks of his model, that matter is composed of atoms that are indivisible and indestructible.

这些是，他的模型的一些内容，物质是有原子组成的,不可分割且不可毁灭的。

麻省理工公开课 - 固态化学导论课程节选

It means that we better get away from these deterministic models where we have a little electron here with its potential energy and its kinetic energy.

它的意思是我们最好远离,这些确定性模型,那里有一个小电子,它具有势能和动能。

麻省理工公开课 - 固态化学导论课程节选

So you really want to think about why we're modeling, what do we get from this exercise?

你们要多问问自己为什么要建模,我们能从这些模型中学到些什么

耶鲁公开课 - 博弈论课程节选