说明：  实现一个多数据源的全文检索系统，包括索引服务器和多个不同类型的查询接口等功能模块，能够处理文档、多媒体文件、数据库等多种数据源，能够使没有全文检索基础知识的开发人员都能够快速的为自己的系统添加基于内容的搜索功能，可以大大节省开发人员的时间，提高开发效率，快速部署应用。
(More than one data source to achieve the full-text retrieval system, including the index server and a number of different types of query interface function module, capable of handling documents, multimedia files, databases and other data sources, to enable full-text search is not based on knowledge of the developers able to quickly add their own systems for content-based search function, developers can greatly save time and improve the development of efficient, rapid deployment applications.)