The power industry is a fundamental sector of the national economy, providing reliable energy support for social development. The power industry encompasses various aspects such as power generation, transmission, distribution, and consumption, and is an essential component of modern society. The position of the power industry in the national economy is that it is one of the important pillar industries, supplying stable energy to various sectors and promoting social development.

The water treatment industry refers to a complete industrial chain system covering the development, utilization, protection, intelligent management, and related services of water resources, as well as the research and development and manufacturing of technical equipment. It includes the links of raw water, water supply, water conservation, wastewater discharge, sewage treatment, and water resource recycling and utilization. It has the attributes of a fundamental and strategic industry. The core objective of this industry is to promote the safe and efficient utilization of water resources and the healthy and sustainable development of the water ecosystem.

The pharmaceutical industry is an important component of China's national economy, being an industry that integrates traditional and modern industries. Its main categories include: chemical raw materials and preparations, Chinese medicinal materials, Chinese herbal decoctions, Chinese patent medicines, antibiotics, biological products, biochemical drugs, radioactive drugs, medical devices, medical materials, pharmaceutical machinery, pharmaceutical packaging materials, and pharmaceutical commerce. The pharmaceutical industry plays a very significant role in protecting and enhancing people's health, improving their quality of life, and in various fields such as family planning, disaster relief and epidemic prevention, military supply and preparedness, as well as in promoting economic development and social progress.

Natural gas refers to all gases naturally existing in nature, including those formed through various natural processes in the atmosphere, hydrosphere, and lithosphere (such as gas from oil fields, gas fields, mud volcano gases, coalbed methane, and biogenic gases, etc.). Utilizing natural gas as an energy source can reduce the consumption of coal and oil, thereby significantly improving the environmental pollution problem.

The metallurgical industry refers to the sector that utilizes the physical, chemical and mechanical principles and technologies related to metals to refine, process and manufacture metal ores, metal waste, etc. The metallurgical industry covers a wide range of fields, including the extraction of metallurgical raw materials, metallurgical process technologies, and metallurgical equipment manufacturing, etc. According to the different links and characteristics of the metallurgical industry chain, the metallurgical industry can be classified.

The petroleum industry is an industrial sector that involves the extraction of petroleum (including natural petroleum, oil shale, and natural gas) and its processing and refining. It consists of units such as oilfield geological exploration, oilfield development, oil extraction, transportation, and refining and processing. Petroleum is the "blood" of industry and an important industrial energy source.

The chemical industry encompasses departments such as chemical engineering, oil refining, metallurgy, energy, light industry, petrochemicals, environment, medicine, environmental protection, and military industry, which are engaged in engineering design, fine and daily chemical production, energy and power, technology development, production technology management, and scientific research, etc.

New energy refers to various energy forms other than traditional energy sources such as coal, oil, and natural gas. It is also known as unconventional energy. It encompasses all energy sources that have been newly exploited or are currently being actively researched and are yet to be widely adopted. These include solar energy, geothermal energy, wind energy, ocean energy, biomass energy, and nuclear fusion energy. They possess characteristics such as being green and low-carbon, having no risk of resource depletion, and experiencing a decline in energy prices. They are the key areas for future energy development.