The creation of the attribute classification system establishes an easier way to add new attributes without having to perform major code revisions.
属性分类系统的创建，建立了一个不用对代码进行大的修订就可以添加新属性的简便方法。
This is of course a contrived example relating to number classification, so it's hard to generalize to different types of code.
当然这是一个关于数字分类的设想示例，所以很难在各种类型的代码中泛化。
Companies were all assigned a numerical Standard Industrial Classification (SIC) code (now North American industry Classification System, or NAICS) identifying which industry sector they fit in to.
每个企业都会有一个标准产业代码(SIC)(现为北美产业分类系统，简称NAICS)，用来确定各自属于哪个产业部门。
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