梅林在对最近解密​​的OXCART计划相关文件进行研究时发现了一份备忘录，该备忘录报告说，坠毁现场的所有飞机痕迹在1963年已被抹去。

Merlin's research into recently declassified documents on the OXCART project unearthed a memorandum that reported that all traces of the plane had been removed from the crash scene in 1963.

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这同样会给维护带来问题。而且，庞大的构建文件通常有相当多的剪切-粘贴的痕迹。

This, again, creates a maintenance issue; what's more, enormous build files usually have quite a lot of cut-and-paste aspects to them.

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事实上恰恰相反，想想您的软件可能在客户系统上留下的‘痕迹’： 预置文件，日志文件，数据场，配置文件，跟踪文件；您可以给它命名。

On the contrary, consider the possible 'footprint' your software may leave on a client's systems: preference files, log files, data sets, configuration files, trace files; you name it.

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