你可以设想出原子时代的新世界。

You may conceive a new world in the atomic age.

youdao

因此这就是原子时代的开始。

So this is the beginning of the atomic age.

youdao

原子时代的古老的武器控制方式不再管用。

The old arms-control remedies of the Atomic Age may not work.

youdao

So, I said I'd tell you a little bit more about where this Bohr radius came from, and it came from a model of the atom that pre-dated quantum mechanics, and Neils Bohr is who came up with the idea of the Bohr radius, and here is hanging out with Einstein, he had pretty good company that he kept.

我要告诉你们,波尔半径是从哪里来的,它起源于前量子力学时代的，原子模型,尼尔斯，玻尔提出了，波尔半径的概念,这是他和爱因斯坦在一起，他们是好朋友，当我们讨论这个原子模型时你们要记住的是，在1911年。

麻省理工公开课 - 化学原理课程节选