It is mainly divided into industries that produce food and other biomaterials, mainly referring to processing and manufacturing, and also referring to other industries other than the primary and secondary industries, with a wide range. The primary industry mainly refers to industries that produce food raw materials and other biological raw materials, including planting, forestry, animal husbandry, aquaculture and other industries that directly target natural products.
The secondary industry mainly refers to the processing and manufacturing industry, which uses the basic materials provided by nature and the primary industry for processing; The tertiary industry refers to other industries other than the primary and secondary industries, with a wide range, mainly including intangible production departments such as transportation, communication, commerce, catering, finance, education and public services.
The necessity of industrial classification
1, industrial classification is the need of industrial management.
Industry is the middle level of the national economy, and its relationship is complex. The development of the industry is an important aspect related to the development of the whole national economy, and it is impossible for the industry to achieve structural optimization, reasonable layout, perfect management and healthy development completely independently. Therefore, Du Hui must carry out moderate management and reasonable and effective management. First, it requires industry classification and implements classified management.
2. Industrial classification is the condition and task of industrial theory research.
Industrial classification is a prerequisite for scientific and industrial research. Industrial classification is delicious, forming multi-level and multi-type industrial concepts. Industrial classification is the first step in industrial research, and industrial classification is the premise of industrial research. Reasonable industrial classification is the primary task of industrial research. Because the angles and purposes of studying industrial structure and industrial development are varied, and the purposes of industrial research and analysis are also different, a reasonable industrial classification is the primary task of industrial research.