检索语言和检索效率密切相关，它在信息检索过程中起着语言保障的作用。

Information retrieval languages have close relations with retrieval efficiency, which plays a role in language guarantee.

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然后，本文讨论了用户在网络数据库信息检索过程中选择行为的行为表现和影响因素。

Then, the dissertation discusses the concrete behavior and effecting factors of users' selection behavior in the process of web database information searching.

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尽管总是可以删除数据，但一旦数据太多，检索额外的信息可能是一个痛苦的过程。

While you can always delete data, retrieving additional information can be a painful process once you have lots of it.

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