一旦某个词组被选定，相应的网站列表就出现在下方，大大节省了检索时间。
Once a phrase is selected, relevant websites appear below to guide productive exploration.
Xapian组件提供了核心的数据库功能（存储信息）以及搜索和检索系统来查找单词和单词组合（参见参考资料）。
The Xapian component provides the core of the database functionality (for storing the information), and the search and retrieval system for finding words and word combinations (see Resources).
本文提出一种基于分类和关键词组抽取的信息检索算法。
In this paper, a new information retrieval algorithm based on classification and key phrase extraction is proposed.
EXCITE搜索引擎是ARCHITEXT公司的产品，其数据库界面非常友好，用户可以利用关键词、词组和自然语言进行检索。
EXCITE search engine is products of ARCHITEXT company's. It's database interface is very friendly, the user can use key words, phrases and natural language to search.
跨语言信息检索中，输入的查询语句往往是一系列关键词组合，而不是一个完整的句子。
In the cross language information retrieval, the query input is often a combination of keywords, not a complete sentence.
检索途径有三种：目录检索、关键词组合检索或代码检索。
There are three searching approaches: catalog searching, key words searching and code searching.
检索途径有三种：目录检索、关键词组合检索或代码检索。
There are three searching approaches: catalog searching, key words searching and cod...
检索途径有三种：目录检索、关键词组合检索或代码检索。
There are three searching approaches: catalog searching, key words searching and cod...
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