Language:Chinese.No Binding.publisher:China's labor Pub. Date :2010-07-01 version 1.description:Pages Number: 186 Publisher: China's labor Pub. Date :2010-07-01 version 1. The book mines the pressure main line of observation and control technology. introduces the pressure tunnel observation and control technology. mining coal face pressure obse
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Vendeur : liu xing, Nanjing, JS, Chine
paperback. Etat : New. Paperback. Pub Date: 2010 07 Pages: 186 Language: Chinese in Publisher: China Labor and Social Security Publishing House ground pressure observation and control main line underground pressure observation and control technology. introduces roadway pressure observation and control technology coalface ground pressure observation and control technology. Ground pressure observation and control is based on mining pressure to combating major work content and capacity needs. in accordance with the th. N° de réf. du vendeur CC072433
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