Lingua: Inglese
Editore: Emergency Management Press, 2024
ISBN 10: 7523707688 ISBN 13: 9787523707685
Da: liu xing, Nanjing, JS, Cina
EUR 73,98
Quantità: 1 disponibili
Aggiungi al carrellopaperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-12 Pages:252 Publisher:Emergency Management Press This book describes in detail the calculation of surface movement deformation and its parameter obtaining methods in the field of three down coal mining. the calculation method of safe coal rock pillar thickness in coal mining near water bodies. the calculation method of water inflow in coal mines (mining areas) near water bodies. and the three down coal pillar retention methods and examples; introduces.