使用类似进度条和加载圈圈的指示器告诉你的用户软件正在运行，提示他们还要等多久。
Use indicators like progress bars and loading wheels to tell your users that the software is working and inform them how long they have to wait.
图形指示器和运行top命令的xtermBoth都指示CPU使用率的问题。
Both the graphical indicator and the xterm running the top command show a CPU utilization problem.
允许运用应用程序在后台运行时你还可以执行多重任务。 你可以完全定制设备的外观和触觉，从电池指示器到图标显示。
You can also enable multitasking by allowing applications to run in the background and you can completely customize the look-and-feel of the device from battery indicators to icons.
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