The petroleum industry is an industrial sector that exploits petroleum (including natural petroleum, oil shale, natural gas) ..
The chemical industry penetrates all aspects and is an indispensable important part of the national economy. Its development ..
Gas is the general term for gaseous fuels that burn to release heat for urban residents and industrial enterprises. There are..
The electric power industry converts primary energy such as coal, petroleum, natural gas, nuclear fuel, water energy, ocean e..
The water conservancy industry needs to construct different types of hydraulic structures such as dams, dikes, spillways, slu..
Coal industry refers to an industry that mainly exploits coal resources. It is one of the main sources of national energy and..
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