Trace is turned on by specifying any command line parameter to the program when it is invoked.

在调用这个程序时指定任意命令行参数将开启跟踪功能。

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My client test program prints results to the console, so these come out intermixed with the performance trace information in Listing 6.

我的客户机测试程序将结果打印到控制台，这样，它们就与清单6中的性能跟踪信息混在一起。

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Visual trace 6 is used during program execution to reveal the execution path through a diagram; it depicts the control flow and how the software operates.

可视化跟踪6是用于在程序执行过程中，通过图表显示执行路径，它描述了控制流和软件如何运作的方式。

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But to understand why the Navy now looks uniquely suited to meeting missile defense needs, it is instructive to go back to the earliest days of the program, and trace how those needs have changed over time.

FORBES: Missile Defense Becomes A Navy Mission

It's almost a certainty that if you're listening to this program now you're using tiny electronic devices that can trace their heritage back to the mind of William Shockley.

NPR: Electronics Pioneer William Shockley's Legacy

Gates began with the television program, "African American Lives, " back in 2006 when he used research and DNA testing to trace the ancestry of such prominent African Americans as Oprah Winfrey and Quincy Jones.

NPR: Scholar Helps Black Americans Trace Family Roots