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国民经济行业分类是按企业、事业、行政单位所从事的生产或其他社会活动性质的同一性进行的分类。 一、分类及作用 1. 固定资产投资统计中的国民经济行业分类分两种情况：一是基本建设项目，以建设项目建成投产或交付使用后的主要产品种类或主要用途及社会活动种类来划分
The classification of the national economy is based on the identity of the nature of production or other social activities engaged in by enterprises, undertakings and administrative units. I. Classification and Function 1. The classification of national economy in fixed assets investment statistics can be divided into two categories: one is the capital construction project, which is classified according to the main product type or main use and the type of social activities after the construction project is put into production or put into use