为了试验本文中描述的实现，需要用到下列软件。
You'll need the following software in order to try out the implementation described in this article.
使用这里描述的例子和随软件下载提供的示例来试验、学习和进行生产。
Use the examples described here and the samples provided with the software download to experiment, learn, and be productive.
有趣的一点是我描述的改变关于在试验完成之后的继续追踪。
The interesting point is that the changes I describe above were tracked after the experiment had finished.
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