If you are already familiar with NLS, skip to next topic, Enhancing the application structure.

如果您对此已经很熟悉，则可转到下一主题，强化应用结构。

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Next topic is flux in plane and space.

下一个知识点是，平面和空间中的通量。

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Next topic, I want to talk about mortgages.

下一个话题是抵押贷款。

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Next topic, I want to talk about mortgages.

下一个话题是抵押贷款。

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