index documents meaning in English

索引文件

One is enhanced layered patricia tries index , which is designed for structural navigation through xml hierarchies . it indexes document structures and contents simultaneously
对于数据索引，采用改进的分层patriciatries索引作为主索引，用于对xml数据层次进行导航，并且对xml文档的结构和内容同时进行索引。
The author connecting with the practice , made the discrimination and classification about ( edit4 ) unenumerated index documents theme . discrimination & classification about ( edit4 ) unenumerated index documents theme
摘要本文结合分类标引工作中的实践经验，对《中图法》（四版）未列类目的文献主题进行了归类辨析。