本文依据电子书交换系统(ebx)的DRM技术，构建了数字图书馆电子书服务的理论模式。
A theory pattern of e-book service is established for the digital library based on DRM technologies of e-book exchange (EBX) system.
本文依据电子书交换系统(ebx)的DRM技术，构建了数字图书馆电子书服务的理论模式。
A theory pattern of e-book service is established for the digital library based on DRM technologies of e-book exchange (EBX) system.
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