1. Tertiary industry is short for tertiary industry. Tertiary (sub)industry refers to the service industry in a broad sense. Such as storage and transportation industry, communication industry, catering industry, science, education, culture, health and other industries.

2. The primary industry refers to agriculture, forestry, animal husbandry and fishery (excluding agriculture, forestry, animal husbandry and fishery services).

3. The secondary industry refers to the mining industry (excluding mining auxiliary activities), manufacturing industry (excluding metal products, machinery and equipment repair industry), electric power, heat, gas and water production and supply industry, and construction industry.

4. The tertiary industry, i.e., the service industry, refers to industries other than the primary and secondary industries. The tertiary industry includes: wholesale and retail trade, transportation, warehousing and postal service, accommodation and catering, information transmission, software and information technology services, finance, real estate, rental and business services, scientific research and technical services, water conservancy, environment and public **** facilities management, residential services, repairs and other services, education, health and social work, culture, sports and recreation, public **** management, social security and social welfare services, education, health and social work, culture, sports and recreation, public **** management, social security and social welfare services. *** management, social security and social organizations, and international organizations, as well as agriculture, forestry, animal husbandry and fishery services in agriculture, forestry, animal husbandry and fishery, mining auxiliary activities in mining, and metal products, machinery and equipment repair in manufacturing.