9787811077889 - ground pressure and strata control national coal vocational adult eleventh five-year plan materials(chinese edition) de jiang jin quan , wang guo ji , zhang deng ming , deng bian (1 resultados)
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Librería: liu xing, Nanjing, JS, Chinaliu xing
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paperback. Condición: New. Paperback. Pub Date :2007-11-01 Pages: 293 Language: Chinese Publisher: China University of Mining Press mine the coal strata control pressure and vocational adult Eleventh Five-Year Plan textbook rock and a brief description of the mine The basic nature of the rock. original rock and rock mass stress…redistribution. work surface coal mining activities overburden pressure behavior law and mining law. the law of mine roadway on the basis of appearance. a more detailed description of the mining.
