The characteristics of network course contents and students are used to build, the model of describing knowledge point and knowledge cell.
针对网络课程内容与学习对象的特点，建立了描述原子知识点和知识单元的模型。
With the application of network technology and the rise of knowledge management in the knowledge economy age, knowledge service has become the hot point of library research in 21st century.
知识经济时代，网络技术的应用和知识管理的兴起对图书馆工作提出了新的挑战，知识服务成为21世纪图书馆界的研究热点。
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