In network - based education, a traditional navigator or a searching engine had some inherent weaknesses, so individualized intelligent learning has been difficult to realize.

在网络教育中，传统的导航方式或搜索引擎方式引导学习过程有着自身固有的缺陷，无法实现智能化、个性化学习。

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Facing vast expanse of network information it also has expounded college libraries how to provide quick and exact service to the readers, and how to be a good information navigator.

阐述了高校图书馆面对浩瀚的网络信息如何迅速、准确地为读者提供服务，做好“信息导航员”。

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In the autumn of 1993, O'Reilly launched Global Network Navigator (GNN), an on-line magazine and Internet reference guide.

ECONOMIST: From the archive

Out of this book grew the Global Network Navigator (GNN), the first commercial site on the World Wide Web and arguably Tim O'Reilly's most important contribution to the technology community.

FORBES: Calliope's revenge