And, in fact, these are the only two types of nodes that we're going to be describing, so we can actually calculate both the total number of notes and the number of each type of node we should expect to see in any type of orbital.

事实上，我们只,描述这两种节点，所以我们可以,计算任何轨道中的,总结点数以及各种节点数。

麻省理工公开课 - 化学原理课程节选

So in our course we are only going to have two types of meter, These organizations taking the beat and organizing it into groups, is called superimposing meter on the music.

所以我们的课程中,只会出现两种拍子,这些组织方式将拍编组,在音乐中称为拍子的叠加

耶鲁公开课 - 聆听音乐课程节选