Providing the employment information service for the graduates is the enlargement and extension of the service function of university library.

为毕业生提供就业信息服务是高校图书馆服务功能的扩展和延伸。

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Therefore, Academic Virtual Service Reference System as the network extension of teaching and research work of university library also plays a very important role.

因此，高校虚拟参考咨询系统作为高校图书馆参与教学和科研工作的网络延伸也同样具有非常重要的作用和地位。

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The alliance between library and company, which is the extension of libraries' function, has expanded the library information service and strengthened its social function.

图企联姻，是图书馆职能的外部延伸，可以拓展图书馆信息服务领域，深化其社会职能。

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The free, open-source plug-in, an extension for Firefox, checks a library of scraped terms of service and privacy policies from dozens of major sites that updates every three hours.

FORBES: Firefox Privacy Plug-In Reads The Fine Print So You Don't Have To