substructure

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Second, the query might refer to a specific substructure of the original schema.
其二，查詢可能引用舊模式特定的子結搆。
This change is described in Listing 9, where the subelements of are composed in one plain element (with no substructure).
清單 9 描述了這種變化，子元素由一個簡單元素（沒有子結搆）組成。
Each schema definition deals with a single namespace, and although it can reference and use elements defined in another namespace, it cannot define a substructure for those elements.
每一個模式定義都對應一個名稱空間，雖然它可以引用和使用其他名稱空間中定義的元素，但是它不能爲這些元素定義子結搆。

And when you have an optimal substructure and the local solutions overlap, that's when you can bring dynamic programming to bear.
儅你得到一個最優子結搆,但侷部解決方案有重跌時，你就可以引入動態編程,來解決這個問題了。
麻省理工公開課 - 計算機科學及編程導論課程節選
So let's ask, is there an optimal substructure to this problem.
所以讓我們問問，這個問題是否有最優子結搆。
麻省理工公開課 - 計算機科學及編程導論課程節選
And the other one was optimal substructure.
另一件就是最優子結搆。
麻省理工公開課 - 計算機科學及編程導論課程節選

Responsibility for the rest of the Coda — the substructure, the electric motors, the body, the interior — is all farmed out to automotive suppliers.
FORBES: Coda Automotive's Electric Vehicle Has An Uphill Climb Ahead