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。
The article discusses the external mechanism and technology model in the externalization of corporate tacit knowledge from the point view of sociology.
本研究从社会学视角分析探讨了企业隐性知识显性化的外部机制和技术模式。
However, the spatial data model of main GIS systems only reflect knowledge of management and manipulation objects in field of cartography, such as point, line and poly geometry objects.
当今的GIS系统的空间数据模型，主要反映地图制图领域的点、线、面对象管理与操作的几何知识。
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