So, let me get a little bit more specific about what we mean by nodal plane and where the idea of nodal plane comes from, and nodal planes arise from any place you have angular nodes.

关于节面的意义,或者节面概念的起源，让我们讲的更具体一点，节面起源于角向节点。

麻省理工公开课 - 化学原理课程节选

because your mind is already in that mode of bringing ideas from concept to something a little bit more concrete.

因为你的大脑已经处在能把概念转化为比较具体的实物的模式中了。

英语写作：技巧 - SpeakingMax英语口语达人