Suppose I want to do little piece of code that's going to do planar geometry, points in the plane.

好，因此我需要一些,把这些东西收集到，一起的一些方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

So what we'll have here is a trigonal planar case, and you can see that we only have three electrons that are set for bonding, so we'll add three hydrogens, and for b h 3, we'll get a stable structure here.

让电子劲量远离的时候，不用考虑它,这个例子是平面三角形，你可以看到，只有3个电子可以成键。

麻省理工公开课 - 化学原理课程节选

So an easy thing to do in planar geometry is I want to make a line segment.

在平面几何里比较容易的一件事,就是做一个线段。

麻省理工公开课 - 计算机科学及编程导论课程节选

So again, if we think about that shape of that carbon atom, it's going to be trigonal planar, 120° it's going to have bond angles of 120 degrees, because we have this set up of having three hybrid orbitals.

如果我们考虑碳原子的形状，它是平面三角形，键角是，因为我们有这三个杂化轨道。

麻省理工公开课 - 化学原理课程节选