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 article introduced the definition, feature and styles of invisible web, explored some methods about how to get information sources of invisible web.

文章通过阐述隐形网络的定义、特征及其类型，探讨了获取隐形网络信息资源的若干途径和方法。

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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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Now new research finds that this hand position creates an "invisible web" of water that gives swimmers more speed.

MSN: Fastest swimmers make webbed hands out of water

In human swimmers, the invisible web of water allows them not to propel themselves faster, but to better lift themselves out of the water.

MSN: Fastest swimmers make webbed hands out of water

"It's like having an invisible web, " he said.

MSN: Fastest swimmers make webbed hands out of water