如何返回一个多维数组键树吗？

How to return a multidimensional array keys as a tree?

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从而提出了基于虚拟二叉键树的分布式索引模型及其构建算法。

Then a model based on virtual binary key tree is put forward and the construction algorithm is given.

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该文设计了一种基于键树思想的SPDB组织方式和相应的查找算法，使平均查找长度大为缩短。

The article designs a kind of SPDB organization based on key tree and corresponding query algorithm, which makes average query length shorten a lot.

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