... 产出统计 output statistics 产业部门分类 classification of industry branches 产业统计一体化系统 integrated system of industrial statistics ...
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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。
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.
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