On the relationship between industry, industry and occupation

Countries all over the world divide various industries into three categories: primary industry, secondary industry and tertiary industry. The primary industry refers to industries that provide means of production, including planting, forestry, animal husbandry, aquaculture and other production departments that directly target natural objects. The secondary industry refers to the processing industry, which uses basic means of production for processing and sales. The tertiary industry refers to industries other than the primary industry and the secondary industry. The tertiary industry is extensive. Including transportation, communications, commerce, catering, finance and insurance, administration, family services and other intangible production sectors.

Industry refers to all walks of life, that is, all kinds of industries engaged by working people, and industries are more specific than industries;

Occupation is a specific division of labor within the industry, such as accounting, marketing, personnel, administration, logistics, etc. It exists in a specific company in the form of a department and is also a concrete embodiment of personal value.