您需要大约80兆比特(GB)的可用硬盘空间。
You will need approximately 80 gigabytes (GB) of free disc space.
至少20 mb可用硬盘空间，用来安装本教程涉及的软件组件和示例。
At least 20 MB of disk space to install the software components and examples covered.
在您的计算机上安装的每个应用程序降低了可用硬盘空间，降低系统的性能。
Every application installed on your computer decreases the free hard disk space and reduces system's performance.
应用推荐