Author define economic region a geographical area with a nodal structure and an economic function.

作者认为经济区域即是具有核心构造和具备某种经济职能的地理区域。

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Similarly, if we were to look at the radial probability distributions, what we would find is that there's an identical nodal structure.

相似地如果我们看看，径向概率分布，我们会发现有一个完全相同的波节结构。

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Thus, the researchers mapped the "nodal structure" of the underlying molecule's orbital, essentially sketching an outline of the Spaces that contained electrons.

因此，研究者们绘制了在下面的原子轨道的结点结构，从根本上说是画出了含有电子的空间轮廓。

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Similarly, if we were to look at the radial probability distributions, what we would find is that there's an identical nodal structure.

相似地如果我们看看,径向概率分布,我们会发现有一个完全相同的波节结构。

麻省理工公开课 - 化学原理课程节选

They're pretty straight forward to do and it gives us an idea what kind of nodal structure we can expect it an orbital.

这个对我们来说很明显,而且让我们对,预计是哪类节点有个概念。

麻省理工公开课 - 化学原理课程节选