测试通常通过一个外部界面(“黑盒子测试”)来完成。

Testing is done through an external interface (" black box testing ").

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这些命令是相似的，但为您运行的外部程序提供不同的界面。

These commands are similar, but provide different interfaces to the external program you're running.

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为了外部的演示我们将很快的将用户界面屏幕集成到一起。

We'd soon be pulling together user interface screens for an external demonstration.

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