The guiding thread of the book is the correspondence, the parts of the city and the parts of the soul.

本书的导引线索是,当中的相似之处，城邦一部份与灵魂一部份间的对称性。

耶鲁公开课 - 政治哲学导论课程节选

So in molecular orbital theory, what we did was we named orbitals based on their symmetry.

在分子轨道理论中，我们基于轨道的对称性给它们命名。

麻省理工公开课 - 化学原理课程节选

That's due to the asymmetry of the nucleotide, that there's a 5' and a 3' end and the way that they're linked together.

这是由于核苷酸的非对称性造成的,这里是5'端和3'端,这就是它们连接在一起的方式

耶鲁公开课 - 生物医学工程探索课程节选

So the way that you describe a bond is you describe the orbitals that the bond comes from, and also the symmetry of the bond.

描述一个键的办法,是描述形成键的轨道，以及键的对称性。

麻省理工公开课 - 化学原理课程节选

And the last thing we can think about is how do we name this n h bond, and again, we just name it based on it symmetry.

最后我们要讨论的是,如何命名这个NH键，同样，我们基于它的对称性命名它。

麻省理工公开课 - 化学原理课程节选