Through the example, carries on the entity modeling of components mechanical arm fast and accurately use AUTOCAD2006.
通过绘制实例,快速准确地利用AUTOCAD2006进行零件机械臂的实体建模。
The technical data quality dimension defines the data quality criteria often found in logical data modeling entity integrity and referential integrity rules.
技术性数据质量维定义在逻辑数据建模实体完整性和引用完整性规则中常见的数据质量标准。
Unlike the conceptual data modeling phase, where a few attributes may be shown for illustration purposes only, all of the attributes for each entity must be included during logical data modeling.
在概念数据建模阶段,只显示一些作为演示的属性,而在逻辑数据建模期间,必须将每个实体的所有属性包括进来。
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