The environmental water treatment industry belongs to the water pollution control industry, mainly including the design and construction of water pollution control, the operation of water pollution control facilities, as well as the equipment, chemicals and other products required for water pollution control, the recycling and reuse of sewage sludge resources, and the comprehensive treatment of water pollution.

The metallurgical industry refers to the industrial sector that mines, selects, and sinter metal ores, and then refines and processes them into metallic materials.

The petroleum industry is an industrial sector that extracts and refines petroleum (including natural oil, shale oil, and natural gas). Composed of units involved in oilfield geological exploration, oilfield development, oil extraction, transportation, refining and processing. Petroleum is the "blood" of industry and an important industrial energy source.

The chemical industry includes sectors such as chemical engineering, refining, metallurgy, energy, light industry, petrochemicals, environment, medicine, environmental protection, and military industry engaged in engineering design, fine and daily chemical engineering, energy and power, technology development, production technology management, and scientific research.

The power industry is an industrial sector that converts primary energy sources such as coal, oil, natural gas, nuclear fuel, hydropower, ocean energy, wind energy, solar energy, biomass energy, etc. into electrical energy through power generation facilities, and then supplies it to users as energy through transmission, transformation, and distribution systems.

Natural gas is a general term for mixed gases mainly composed of hydrocarbons that exist in underground rock reservoirs. It is a high-quality fuel and chemical raw material. Due to the increasing demand for clean energy in environmental protection and the impact of high oil prices, the natural gas industry has become a new economic growth point.

New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy. Refers to newly developed or actively researched energy sources that need to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy, and nuclear fusion energy.

The production department of chemical drugs consists of two parts: raw material drug production and drug formulation production. Raw materials are the material basis for drug production, but they must be processed into drug formulations suitable for use in order to become drugs.

The shipbuilding industry is an industrial sector that manufactures various types of ships. The shipbuilding industry is a comprehensive industry that provides technical equipment for the shipping industry, ocean development, and national defense construction. It plays a strong driving role in the development and expansion of key industries such as steel, petrochemicals, light industry, textiles, equipment manufacturing, and electronic information exports.