It abstracts a form of technology away from its original and real environment and delivers it in a virtual form to users.
它从原来的真实环境中抽象出资源的虚拟形式，以虚拟形式向用户提供资源。
An operating system is application execution environment that abstracts away the hardware.
这个操作系统是对硬件进行了抽象的应用程序执行环境。
An operating system is application execution environment that abstracts away the hardware.
这个操作系统是对硬件进行了抽象的应用程序执行环境。
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