介绍了隐蔽网络的定义、特点、形成原因以及类型，详细阐述了针对隐蔽网络的检索策略。
This paper introduces the definition, characteristics, formation reasons and types of invisible web, and expounds the retrieval tactics of the invisible web.
本文详细讨论了学科信息门户建设过程中网络资源采集的范围、质量标准、检索途径及策略。
The article discusses the scope, the quality requirement and the search strategy of web resources selection in the construction of subject information gateway.
介绍了隐蔽网络的定义、特点、形成原因以及类型，详细阐述了针对隐蔽网络的检索策略。
The paper expatiates the concepts and characteristics of invisible web, expatiates the reason of its forming in the information navigation system.
介绍了隐蔽网络的定义、特点、形成原因以及类型，详细阐述了针对隐蔽网络的检索策略。
The paper expatiates the concepts and characteristics of invisible web, expatiates the reason of its forming in the information navigation system.
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