Analyzes the factors influencing the network reference service system and discusses the functions of the system taking the software VRD as an example.
剖析影响网上参考服务系统的因素，并以网上参考服务软件VRD为例，对网上参考服务系统的功能进行探讨。
The main items includes characteristic digital resourses construction, network reference service, electronic magazines, mutual borrow and navigation service.
主要项目包括：特色数字化资源建设、网上参考咨询服务、 电子馆刊、馆际互借与文献传递服务、导航服务。
Network environment brings about new changes to library reference service.
网络环境给图书馆的参考咨询服务带来了新的变化。
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