物理数据模型可以提供数据库实体的视图，您可以做出设计决策，然后在当前的数据库模型中实现这些决策。
The physical data model gives you a picture of your database entities and lets you make decisions, then execute them on your current database model.
三维地质实体模型的建立对于工程设计和决策具有十分重要的意义。
Three - dimensional geological solid modeling is of great importance to engineering design and decision - making.
它是以从系统行为基层进到实体对象行为的方式思考问题的，是虚拟模型方法的具体体现，也符合决策者的设计思维。
It follows the way of thinking from the system behavior to physical object behavior, being an embodiment of the virtual model methods and in line with the decision makers 'way of thinking.
它是以从系统行为基层进到实体对象行为的方式思考问题的，是虚拟模型方法的具体体现，也符合决策者的设计思维。
It follows the way of thinking from the system behavior to physical object behavior, being an embodiment of the virtual model methods and in line with the decision makers 'way of thinking.
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