我们提出了基于本体论之场景式的查询扩充系统来改善这些问题。
This thesis proposes an ontology-initiated scenario-specific query expansion system to solve these problems.
在本例中，我们使用XRT表示法，它是将查询语句与XSL转换捆绑在一起的XSL的松散扩充。
In our example, we use the XRT notation, which is a loose extension of XSL that ties together query statements with an XSL transformation.
文章对数据库结构进行了合理的设计构思，使其具有信息分类明确、层次清晰、查询方便快捷、可扩充性好等特点。
This design of database structure is reasonable and has the characteristics of clear information classification, distinct arrangement, convenient to look up and easy to expand etc.
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