External data sources include flat files, other databases, Internet feeds, and other sources.

外部数据源包括平面文件、其他数据库、互联网提要和其他来源。

youdao

This is because licensed databases are often restricted to a particular location by Internet Protocol (IP) ranges like the library building or university campuses.

这是因为有保护许可的数据库通常对使用范围由严格限制，像图书馆大楼或校园内的IP范围才可使用。

youdao

It is a research engine that lets you access expert content from the "Deep Web", the part of the Internet that is not indexed by traditional search engines (e.g. databases, journals etc.).

这是一个研究引擎帮助你进入专业内容的“深层网络”：那是互联网中没有被传统的搜索引擎索引或收录的信息(比如一些专业数据库，期刊等)。

youdao

Using expensive Internet databases, census reports, passenger lists, graveyards, family Bibles, "even turning over cardboard boxes and tapping people awake on the street, " says Morse, the hunters track down the rightful heirs, many of whom never even knew the deceased.

FORBES: Good Will Hunting

With customers doing their own ordering and billing through the Internet, databases must be able to handle vast numbers of concurrent users and provide information fast.

ECONOMIST: Software

One data broker told Congress his company relied on public databases or Internet searches to get personal information.

NPR: Pretexting Is Alive and Well in Corporate America