从这个对话框中，你可以选择默认的操作系统和显示操作系统列表时间。
From this dialog, you can select the default operating system and the time to display list of operating systems.
它通过简单的生成测试模拟大量的，并发的、多用户负载的情况，然后比较并图形化的显示系统响应时间。
It simulates large, concurrent, multi-user loads based on easily generated tests, and then collates and graphically displays system response times.
系统应能显示车沿跑道绕行一圈花费的时间。
The system shall be able to display the elapsed time for the car to make one circuit around the track.
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