ISBN 10: 7564631422 ISBN 13: 9787564631420
Anbieter: liu xing, Nanjing, JS, China
paperback. Zustand: New. Paperback. Pub Date: 2017-10-01 Pages: 187 Language: Chinese Publisher: publishing house of China university of mining of the thin and medium thick steeply inclined coal seam fully mechanized long wall strata movement rule and control mechanism research. the main content includes the steep coal seam mining similar simulation experiment system research. steep seam fully mechanized strata migration rule research. steep seam fully mechanized.