Macros exploit this fact by manipulating code as data before evaluating it.

宏利用这种事实，在求值之前将代码作为数据操作。

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The performance comparisons use the same test code as earlier articles, a seismic data retrieval service.

性能比较使用与之前文章相同的测试代码，即地震数据查询服务。

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The layered implementation, however, presents problems such as code complexity, data accumulation, and difficulty of debugging.

但是，层状的执行会出现诸如代码复杂性、数据积累以及调试困难之类的各种问题。

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Clear Capital crunches data for several hundred metro areas as well as sub-zip code boundaries, meaning a much larger data pool.

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Around the office, data-mining experiments were given mysterious code names such as Narwhal and Dreamcatcher.

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It is also tricky to capture the data in the field and stick the bar-code labels on the produce as it is picked and packed.

ECONOMIST: Tech.view