Use at least four different consonants in babbling or words, such asm, n, p, b, t, and d?

至少使用4种不同的声母呀呀或词，如米，氮，磷，硼，T和丁?。

youdao

It's somewhat different when we're talking about the p or the d orbitals, and we won't go into the equation there, but this will give you an idea of what we're really talking about with this radial probability distribution.

当我们讨论ｐ轨道或者,ｄ轨道的时候会有些不同，我们那时不会给出方程，但它会给你们一个,关于径向概率,分布的概念。

麻省理工公开课 - 化学原理课程节选