The power industry is an industrial sector that converts various types of primary energy into electrical energy through power generation facilities and then transmits the electricity to end users. It is an important foundational industry of the national economy.

The petroleum industry is an important part of the fuel industry, covering various stages such as exploration, extraction, refining, storage and transportation of natural petroleum and oil shale, and providing various fuel oils for all sectors of the national economy.

The chemical industry refers to all enterprises and units engaged in the production and development of chemical industries. The chemical industry permeates all aspects and is an indispensable and important component of the national economy. Its development, following the path of sustainable development, holds significant practical importance for the economic and social development of mankind.

The shipbuilding industry refers to the sector that designs, builds, and maintains various types of ships and related equipment. It encompasses shipyards, manufacturers of marine equipment, and related service industries, including sub-sectors such as ship design, shipbuilding, ship repair, manufacturing of ship-related equipment, ship trading, and shipping management.

The metallurgical industry refers to the industrial sector that involves the extraction, selection, smelting of metallic ores, and the subsequent processing and manufacturing of metal materials. It consists of two major categories: the black metallurgical industry and the non-ferrous metallurgical industry, and it is an important field within the raw material industry.

The pharmaceutical industry refers to the sector that involves drug research and development, production, sales, and after-sales services. It covers various fields such as chemical pharmaceuticals, biopharmaceuticals, and traditional Chinese medicine, and plays a crucial role in safeguarding human health and improving the quality of life.

Water treatment is a process that uses physical, chemical and biological methods to remove impurities, pollutants or harmful substances from water, so as to make the water meet specific usage standards.

New energy refers to renewable energy that can be systematically exploited based on new technologies, including solar energy, wind energy, hydropower, biomass energy, geothermal energy, ocean energy, nuclear energy, etc.