Also known as "invisible web", the term "deep web" refers to a vast repository of underlying content, such as documents in online databases that general-purpose web crawlers cannot reach.

“深网”也被称做“隐形网”，指的是网络中存储数量浩繁的基本信息的空间，例如存储于在线数据库中的文件，一般用途的网络搜索器是找不到这些文件的。

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The paper expatiates the concepts and characteristics of invisible web, expatiates the reason of its forming in the information navigation system.

文章阐述了隐蔽网络资源的概念和特点及在信息导航中隐蔽网络形成的原因。

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This paper introduces the definition, characteristics, formation reasons and types of invisible web, and expounds the retrieval tactics of the invisible web.

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。

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In that sense Ichoose resembles Third Voice, whose free software lets users paste stick-on notes on Web pages to post comments invisible to the site operator ("Wisecrack-wave, " July 26, 1999).

FORBES: Magazine Article

In that sense Ichoose resembles Third Voice, whose free software lets users paste stick-on notes over Web pages to post comments invisible to the site operator (see " Wisecrack-ware ").

FORBES: Spiders and Lies