Isbn: 9787551728119 (1 resultados)

paperback. Condición: New. Paperback. Pub Date: 2021-10-01 Pages: 287 Language: Chinese Publisher: Northeastern University Press At present. coal is a very important energy source in my country. and gas. as an associated product of coal. is not only a major source of danger in coal mining And a very serious source of environmental pollution. or a valuable non-renewable green energy. The main content of Optimization Theory and Application of Coal and Gas Collaborative Mining comes from the National Key Basic Research De.…