The petroleum industry is an industrial sector that extracts and refines oil (including natural oil, oil shale, and natural gas). From oilfield geological exploration, oilfield development, oil extraction, transportation, refining and processing, etc

The power industry converts primary energy sources such as coal, oil, natural gas, nuclear fuel, hydropower, ocean energy, wind energy, solar energy, biomass energy, etc. into electricity through power generation facilities.

Water conservancy engineering is a construction project used to control and allocate surface water and groundwater in nature, in order to achieve the goal of eliminating harm and promoting benefits. Also known as water engineering.

The shipbuilding industry is an industrial sector that manufactures various types of ships. According to the industrial sector classification catalog determined in December 1984 in China, it does not include the manufacture of wooden boats, cement boats, and rubber boats.

"Construction industry" refers to the construction industry as a category of industry, similar to "chemical industry", "petroleum industry", "mechanical industry", etc. It belongs first to industry, and then to different categories of industry.

The pharmaceutical manufacturing industry refers to the process in which raw materials undergo physical or chemical changes to become new pharmaceutical products, including the manufacturing of traditional Chinese and Western medicine, as well as veterinary drugs, including pharmaceutical raw materials and hygiene materials.

The process and process of extracting metals or metal compounds from minerals and using various processing methods to produce metal materials with certain properties. Mainly including pyrometallurgy, hydrometallurgy, and electrometallurgy.

The chemical industry is divided into three categories: petrochemicals, basic chemicals, and chemical fibers. Basic chemical products are divided into nine categories: fertilizers, organic products, inorganic products, chlor alkali, fine and specialized chemicals, pesticides, daily chemicals, plastic products, and rubber products.