The power industry refers to the industry involving the production, transmission, distribution and sales of electricity, which is one of the important pillars of the national economy. According to different sources of energy conversion, the power industry can be divided into hydropower, thermal power, nuclear power and other major categories. The power production and consumption system consists of power generation, transmission, power transformation, power distribution and electricity consumption, which mainly converts primary energy from nature into electricity.

The water treatment industry is the basic industry of China's economic and social development, covering many fields such as urban water supply, sewage treatment and recycled water utilization. According to the latest data, the market size of the water treatment industry has exceeded one trillion yuan, the manufacture of sewage treatment equipment occupies the core position of the industrial chain, and the application of biological treatment technology and membrane technology is expanding rapidly.

The petrochemical industry is an important basic and pillar industry of the country, covering the exploration, development, production and investment, operation and trade of oil and natural gas and its related products. The petrochemical industry is an important basic and pillar industry of the country, covering the exploration, development, production and investment of oil and natural gas and related products. Capital, management and trade.

Petroleum refers to a mixture of liquid and solid hydrocarbons with natural products. Petroleum is also divided into crude oil, natural gas, natural gas liquid and natural tar, but it is still customary to use "oil" as the definition of "crude oil". Petroleum is a viscous, dark brown liquid known as the "blood of industry".

The natural gas industry is experiencing rapid development in China and around the world, becoming an important pillar of energy transformation, and is expected to continue to grow in the future. As a clean, low-carbon and efficient fossil energy source, natural gas is widely used in many fields such as residents' life, industrial fuel and power generation.

New energy is relative to traditional energy sources such as coal, oil and natural gas, also known as unconventional energy, which refers to various forms of energy other than traditional energy. It refers to the energy resources that have just begun to be developed and utilized or are being actively studied and need to be promoted. Including solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy, it has the characteristics of green and low carbon, no risk of resource depletion, and declining energy prices. It is a key area for future energy development.

Metallurgical industry refers to the industrial sector of exploration, mining, selection, smelting and rolling of metal minerals. It is mainly divided into two categories: black metallurgy and non-ferrous metallurgy. As an important industrial raw material supply sector, the metallurgical industry provides rich metal materials for all sectors of the national economy and is the material basis for industrial economic development.

The pharmaceutical industry is an important part of the national economy, mainly including chemical raw materials, preparations, biopharmaceuticals, traditional Chinese medicine and other sub-fields. This industry is of great significance for protecting and enhancing people's health and improving living standards. In recent years, with the breakthroughs in gene editing, cell therapy and other technologies, the biomedical industry has become the core of global scientific and technological development.