概念上数据模型 (Conception Data Model) Design database using Entity-Relationship (ER) notation
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This paper describes a beautiful future of the RDF application through the introduction of metadata, some basic conception of RDF and RDF data model.
本文通过介绍元数据、RDF的一些基本概念与RDF数据模型，描述了RDF应用的广阔前景。
Introduces the basic conception of the reverse engineering and three-dimensional modeling method based re technology: data gathering, cloud data processing and three-dimensional model rebuilding.
介绍了逆向工程的基本概念，基于RE技术上的三维建模方法：数据采集、点云数据处理、三维模型重建。
In this paper, the conception of the model recognition-tracking-coordinate transfer data processor in HF skywave OTH-B Radar is described.
本文简述了高频天波超视距雷达模式识别、跟踪、座标变换数据处理器概念。
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