将逻辑建模与物理建模清晰分离是特别重要的。
It is particularly important to clearly separate logical modeling from physical modeling.
什么是物理建模？
既然我们是在对一个物理系统建模，我们来让它更真实一些。
Since we are modeling a physical system, let's add a bit more realism.
数据建模者，负责逻辑和物理仓库数据建模。
A data modeler, who is responsible for both logical and physical warehouse data modeling.
物理数据建模相当于房屋的蓝图。
Physical data modeling can be described best as the blueprints of the house.
建模的实际内存大小(实际物理或逻辑内存)。
The modeled true memory size (real physical or logical memory).
逻辑数据模型是当前项目的物理数据建模的基础。
It is the basis for the physical data modeling for the current project.
ODE是一个开放源码物理引擎，它可以很好地实现物理系统的建模功能。
Ode is an open physics engine that's perfect for physical systems modeling.
目的：压力控制通气物理过程的数学建模。
Objective:To establish the mathematical model for the physical process of pressure controlled ventilation.
观念，物理特性，建模，进度检查。
对实际工程进行数学建模的时候，不确定系统往往更能反映其物理本质；
An uncertain system model can approximate a physical engineering system very well.
对实际工程进行数学建模的时候，不确定系统往往更能反映其物理本质；
An uncertain system model can approximate a physical engineering system very well.
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