Recall that the query model is a client-side library that generates MDX, so it is easy to change the query model without changing the core parts of the API for querying metadata and executing queries.

前面已经说过，查询模型是一个生成MDX的客户端库，所以修改起来非常容易，也不会修改API里查询元数据、执行查询的核心部分。

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With an analysis of the deficiencies of the traditional bibliographic query system, this paper puts forward a library bibliographic query system based on vector space model.

通过对传统的书目查询系统弊端的分析，设计了一种基于向量空间模型的图书馆书目查询系统，并介绍了该系统的详细设计与实现过程。

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