Information Retrieval on-Internet Internet信息检索
Information Retrieval on Internet is a new technology.
信息搜寻是网络技术的新课题。
Subject gateway, coming to meet the need of information retrieval on Internet, is one of the effective resource discovery tools on Internet.
网络学科主题门户是为适应因特网海量信息的搜索需求而出现的，是对因特网上学术信息的一种有效的发现和组织工具。
But, when search engines are used for information retrieval on Internet, the returned results are so extremely huge that users often find it difficult to seek the quite consistent useful information.
然而，在利用搜索引擎进行信息检索时，返回的搜索结果数目非常庞大，用户难以准确地寻找到自己所需的信息。
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