...第一版的模型完成 19 Contents • 建立逻辑模型(creating the logical model) • 常见的建模问题(Common Data Modeling Problems) √ 20 Common Data Modeling Problems • 改善数据模型不是件容易的事,需要平衡SQL Server的物理限制并同时满足客户的商业需求.
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分析了目前家具设计中存在的问题，提出了将常见结构作为基本图元，由图元构建家具产品的建模方法。
This paper analyses the problem on furniture design at present. The furniture product modeling method is presented that the common structure is used as the drawing cell to construct the product model.
云是一种常见、普遍的自然现象，云的建模和渲染是计算机图形学领域的一个难点问题。
Cloud is a common, widespread natural phenomenon, cloud modeling and rending are a difficult problem in the field of computer graphics.
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