网上咨询服务是网络环境下图书馆信息服务纵深化的主要方式。
Online reference service is a major way to deepen library information service under network environment.
网络知识经济时代，信息咨询服务发生了深刻的变化。
Great changes have happened in information service in the network knowledge economy era.
网上参考咨询是图书馆信息咨询服务在网络环境下的必然产物。
Reference Service is the inevitable trend of Libraries' information service under internet environment.
网上参考咨询是图书馆信息咨询服务在网络环境下的必然产物。
Reference Service is the inevitable trend of Libraries' information service under internet environment.
应用推荐