From Operating System theory, OS implements a page table entry, PTE, to describe a mapping of a page in VAS to physical page.

来自操作系统的理论，操作系统引入一个页表项，PTE，描述了一个在VAS中的页到物理页的映射。

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Combining visualization technology and operating system education will contribute to the comprehension of operating system theory for students and researchers undoubtedly.

将可视化技术引入操作系统教研领域，无疑是有助于学生和科研工作者对操作系统有更深入了解。

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The integrated system combined radiant floor with ground-source heat pump is discussed. The basic theory, various operating and controlling models of the system are described.

提出了地源热泵—辐射地板联合系统的概念，阐述了该系统基本原理以及运行和控制模式。

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