To use the tool, you first use Purity to instrument your program.

要使用这个工具，您首先要利用 Purity 来测试您的程序。

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When you instrument your program, Purify provides the real definitions for the API functions, and stubs are ignored.

当您测试您的程序时，Purify将会提供整个真实的api函数定义，而存根会被忽视。

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There are many different practice area airports, which gives you an inside in the same class at several different airports experience more instrument training program.

练习区内有许多不同的机场，这就为您提供了一个可以在同一堂课内，在几个不同机场体验更多仪表训练程序。

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The show lasted almost five hours, with each performer showcasing his own particular brand of wizardry on the instrument (all the headliners were men, though there were a few women as supporting players in the program).

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