Published by China Press, 2000
ISBN 10: 750203336X ISBN 13: 9787502033361
Seller: liu xing, Nanjing JiangSu, JS, China
paperback. Condition: New. Paperback Language: Chinese mining roadways thin layer of composite roof control technology and engineering practice. discusses the mechanical characteristics of the thin layer of compound roof recovery roadway. variation and its influencing factors. mining roadways thin layer of compound roof deformation and failure mechanism of induction of recovery the roadway thin layer of compound roof deformation and failure of law. analysis of recovery roadway thin layer of compound roof control princi.