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• 000 01196nam0 2200253 450

• 001 0000187648

• 005 20091123082900.0

• 010 __ |a 978-7-5020-3397-2 |b 精装 |d CNY86.00

• 100 __ |a 20090318d2008 ekmy0chiy0120 ea

• 101 0_ |a chi

• 102 __ |a CN |b 110000

• 105 __ |a y z 000yy

• 106 __ |a r

• 200 1_ |a 低透气性煤层群无煤柱煤与瓦斯共采理论与实践 |A Di Tou Qi Xing Mei Ceng Qun Wu Mei Zhu Mei Yu Wa Si Gong Cai Li Lun Yu Shi Jian |d = Theory and Practice of Integrated Pillarless Coal Production and Methane Extraction in Multiseams of Low Permeability |f 袁亮著 |F Yuan Liang Zhu |z eng

• 210 __ |a 北京 |c 煤炭工业出版社 |d 2008

• 215 __ |a 233页 |d 27cm

• 330 __ |a 本书系统地阐述了低透气性高瓦斯煤层群首采卸压层沿空留巷Y型通风无煤柱煤与瓦斯共采的理论及关键技术。通过对采空区边缘岩体结构变形破坏和裂隙演化规律的分析，提示了卸压瓦斯富集区域、运移通道及渗透规律等。

• 510 1_ |a Theory and Practice of Integrated Pillarless Coal Production and Methane Extraction in Multiseams of Low Permeability |z eng

• 606 0_ |a 煤层群 |x 无煤柱开采

• 606 0_ |a 瓦斯煤层采煤法

• 690 __ |a TD823.82 |v 4

• 701 _0 |a 袁亮 |A Yuan Liang |4 著

• 801 _0 |a CN |b TANGWEI |c 20091028

• 905 __ |a AUSTL |d TD823.82/Y479