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Behavior of roof coal and estimation of its recovery rate and impurity in sublevel caving mining : Wu Jian; Yu Haiyong Proc International Symposium on Modern Mining Technology, Taian, October 1988P198–205. Publ Taian: Shandong Institute of Mining and Technology, 1988


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
117 KB
Volume
27
Category
Article
ISSN
0148-9062

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