The essay presents how to use Virtual Machine software to demonstrate the setup of computer system bottom layer and the installation of operating system to students in teaching.
该文介绍了如何使用虚拟机软件，在计算机教学中为学生演示计算机系统的底层设置和操作系统地安装。
At the bottom of the VFS are the file system abstractions that define how the upper-layer functions are implemented.
在VFS下面是文件系统抽象，它定义了上层函数的实现方式。
The coal and limestone storage yard must have a bottom impermeabilization system. This system may be constituted by a clay layer, a geomembrane layer, or other impervious material.
煤料和石灰石存放场必须有底部防渗系统。该系统可由粘土层、地质处理用膜层、或其他防渗材料组成。
应用推荐