Network information services are based on network information search.

网络信息服务以网络信息查询为基础。

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One of the most important parts of search engine is WebCrawler which can get the original information from network for the search engine.

搜索引擎一个重要部分是网络爬虫程序，依靠网络爬虫，搜索引擎可以获取用来检索的原材料信息。

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With the rapid expansion of network information, single search engine doesn't meet users' information retrieval requirement.

随着网络信息的迅速膨胀，单个搜索引擎已不能满足用户的信息检索需求。

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In fact, it already apparently has: In August, after Baidu first listed on the Nasdaq exchange, the China Internet Network Information Center said the company enjoyed 38% of the local search market, with Beijing-based portal Sohu coming in second at 19.6%--and Google having a paltry 12.6% of users.

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He also wrote about software agents that go out into the network and come back with any information you want. (Sound a little like a search engine?) Bear and Benford also created fictional global networks long before the World Wide Web was a gleam in the eye of its creator Tim Berners Lee.

FORBES: Inventing The Future