So, actually I want you to go ahead in your notes and circle that zero point and write "not a node."

在你们笔记上把这个零点圈出来,在旁边写上“不是节点“,它不是节点“

麻省理工公开课 - 化学原理课程节选

So this, where we start at zero is not a node, is the first thing to point out.

零点不是节点，这是第一个要指出来的，当我们。

麻省理工公开课 - 化学原理课程节选

Point of absolute rest in a vibrating string we call a node.

一条绳子上绝对震动静止的点,我们称之为节点。

麻省理工公开课 - 固态化学导论课程节选

The point I wanted to make is that for every node, except the leaves, the leaves are the bottom of a tree in this case, are weird, right, they draw trees where the root is at the top, and the leaves are at the bottom.

你没必要看到整棵树，我想说的重点是,对每个节点来说，除了叶子节点,叶子节点指的是树的最下面的节点，电脑科学家都很奇怪,他们画树的时候根是在最上面的。

麻省理工公开课 - 计算机科学及编程导论课程节选

So that's why we have this zero point here, and just to point out again and again and again, it's not a radial node, it's just a point where we're starting our graph, because we're multiplying it by r equals zero.

这就是为什么在这里有个零点，我需要再三强调，这不是径向零点，他只是我们画图的起始处，因为我们用ｒ等于０乘以它。

麻省理工公开课 - 化学原理课程节选

And that zero point is the node.

这个零平面就是节点。

麻省理工公开课 - 固态化学导论课程节选