2. The secondary industry mainly refers to the processing and manufacturing industry that uses the basic materials provided by nature and the primary industry for processing.
3. 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.
4, the relationship between the three industries-interdependence, mutual restraint:
① The primary industry lays the foundation for the secondary and tertiary industries;
② The secondary industry is the core of the three major industries and plays a leading role in the primary industry;
The primary and secondary industries create conditions for the tertiary industry, and the development of the tertiary industry promotes the progress of the primary and secondary industries.
Extended data
1, 20 12 years, according to the National Economic Industry Classification (GB/T 4754—20 1 1) promulgated by the General Administration of Quality Supervision, Inspection and Quarantine and the National Standards Committee, our bureau revised the three industrial classification regulations in 2003 again.
First, adjust three categories.
In order to standardize the caliber and scope of the three industries and service industries and promote the development of China's service industry, the "05 agriculture, forestry, animal husbandry and fishery service industry" in Class A, "1 1 mining auxiliary activities" in Class B and "manufacturing industry" in Class C were classified.
After adjustment, the primary industry is divided into four categories; The secondary industry consists of 2 categories and 36 categories; The tertiary industry consists of 15 and 3 categories.
Second, it is clear that the tertiary industry is the service industry.
In view of the fact that the current caliber and scope of service industry are not uniform, which is not conducive to service industry statistics and service industry accounting, and is not conducive to the implementation of the State Council's Opinions on Accelerating the Development of Service Industry and the Opinions on Strengthening and Perfecting Service Industry Statistics forwarded by the General Office of the State Council, it is clear that the tertiary industry is a service industry when the regulations on three industrial divisions are revised this time.
reference data
Baidu Encyclopedia-Three Industries