Electricity is an energy source that uses electrical energy as its power. It was discovered in the 1870s and its discovery and application triggered the second industrial revolution. It became one of the three technological revolutions that occurred in the world since the 18th century in human history. Since then, technology has changed people's lives.

Environmental water treatment is a wastewater treatment device developed based on soft fillers and semi-soft fillers, combining the structural advantages of both. It is mainly applied to equipment such as contact oxidation towers and oxidation tanks, as well as in the wastewater treatment fields of industrial parks. This device is based on a double-ring plastic ring structure, with snowflake-shaped plastic branches and fiber bundles inside. The unit diameter is Φ150mm. It uses slaked lime to adjust the water quality and combines polyacrylamide as a flocculant, which can reduce fluid resistance by 50-80%.

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, and oil extraction, transportation, and refining and processing. Petroleum is the "blood" of industry and an important industrial energy source.

Metallurgy refers to the process and technology of extracting metals or metal compounds from minerals, and then processing these metals into metal materials with specific properties through various methods. Metallurgy has a long history of development, ranging from the Stone Age to the Bronze Age, and then to the large-scale development of steel smelting in modern times. The history of human development is intertwined with the history of metallurgy.

New energy refers to renewable energy that is systematically developed and utilized based on new technologies, such as solar energy, wind energy, biomass energy, geothermal energy, ocean energy, hydrogen energy, nuclear energy, etc. New energy power generation is the process of generating electricity by utilizing existing technologies and the aforementioned new types of energy.

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.

Natural gas refers to all gases that exist naturally 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.).

The pharmaceutical manufacturing industry refers to the sector where raw materials undergo physical or chemical changes to produce pharmaceutical products. It encompasses seven major categories: manufacturing of raw drugs for chemical medicines, manufacturing of drug preparations, processing of Chinese herbal decoctions, manufacturing of Chinese patent medicines, manufacturing of veterinary drugs, manufacturing of biological and biochemical products, and manufacturing of hygiene materials. It falls under the category of high-tech industries (manufacturing).