For each running process, the mapping between virtual and physical address is maintained in a data structure called the page table.

对于每个正在运行的进程，虚拟地址与物理地址之间的映射是在一个称作页表的数据结构中维护的。

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It is also often very helpful to have a data architect available and involved in this process as they typically understand the physical constraints and structural aspects of the data sources.

让数据架构师参与这个过程常常非常有帮助，因为他们通常了解数据源的物理约束和结构特性。

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The conceptional model, the logistic model, the physical model of the data were established in the process of designing and development of the assistant analysis system.

系统的设计开发是建立数据的概念模型、逻辑模型、物理模型的过程。

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