例句與用法

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1. Hbt lock on a heap or b - tree index
   Hbt =堆或b樹索引的鎖。
2. Nonclustered indexes have a b - tree index structure similar to the one in clustered indexes
   非聚集索引與聚集索引有一個相似的b樹索引結構。
3. All internal data structures , such as b - tree indexes or doubly - linked lists , must be correct at the end of the transaction
   事務結束時，所有的內部數據結構（如b樹索引或雙向鏈表）都必須是正確的。
4. The clustered index is implemented as a b - tree index structure that supports fast retrieval of the rows , based on their clustered index key values
   聚集索引按b樹索引結構實現， b樹索引結構支持基于聚集索引鍵值對行進行快速檢索。
5. Based on the technology and principle above , a experiment system was developed by the author . it provides the clew and method of building r - trees index based on gis platform . also , this paper introduces a strategy of implement of r - trees based on grass platform
   在上述技術和原理的基礎上，最終實現了一個實驗系統，提出了基于grass平臺建立了空間矢量數據的r樹索引的基本思路和實現方法，同時總結了技術上的不足和改進方案。