反之，Django使用了一个单独的基于正则表达式的配置文件将URL映射为底层代码，这样就降低了URL路径结构与实际实现之间的耦合程度。

Conversely, Django USES a separate regular expression-based configuration file to map URLs to the underlying code, decoupling the URL path structure from the actual implementation.

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本文介绍了XML查询的查询处理结构，分析了逻辑优化的常规策略，重点研究了如何针对路径表达式进行优化。

In this paper, we make some researches on the XML query structure and analyze the optimization policy in logical optimization. How to optimize the path expression is discussed primarily in this paper.

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为了加速路径表达式处理，基于路径分解和结构连接操作的处理策略需要更深入的研究。

To facilitate path expression processing, the processing strategy based on path decomposition and structural join operation needs to be investigated more deeply.

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