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。

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

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根结点元素逻辑上包含（拥有或者是其双亲结点）其他的 UML 元素，而这些元素依靠根结点来为容器和名称空间提供它们的需求。

The root element logically contains (owns or is the parent of) the other UML elements that depend on it to provide their requirements for containership and namespace.

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因此，对城市物流结点进行空间优化是非常必要的。

Therefore, it is necessary to optimize the space of logistics nodes.

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