To extract meaningful data from the Deep Web, search engines have to analyze users' search terms and figure out how to broker those queries to particular databases.

为从深层网络提取有意义的数据，搜索引擎必须分析用户的搜索词，找出如何最佳负责安排这些查询调度给特定的数据库。

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Deep features may confuse some users.

高级功能可能使某些用户感到迷惑。

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This is a powerful and deep tool for serious Web users.

对认真的Web用户来说，这是一个强大而有深度的工具。

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Also online travel agencies attract traffic due to deep discounts users expect to find on the OTAs.

FORBES: How A Rebound In Travel Could Hurt Expedia & Priceline

The famed photo sharing network -- now some 80 million users deep -- is detailing its latest user interface overhaul today, and geolocation is at the heart of it.

ENGADGET: Instagram 3.0 adds Photo Maps, infinite scrolling and speed improvements (video)

HuffPo mustered three things that AOL, under Armstrong and his predecessors, never could: a resonant editorial voice, explosive traffic growth and a deep level of engagement with its users.

FORBES: Magazine Article