煤炭与化工
Home  |  (对应重点客户)不要改栏目名称  |  Message  |  中文
CCI
Current Issue| Next Issue| Archive| Adv Search |
Research on pressure relief and permeability improvement mechanism and gas extraction technology of hard coal seam cutting
Guo Silong 1, Zhang Jiale 2
 1. Shanxi Lanhua Technology Entrepreneurship Co., Ltd., Bofang Coal Mine, Jincheng 048026, China; 2. Jincheng Mei 'an Mining Technology Service Co., Ltd., Jincheng 048026, China


Copyright © CCI
Supported by: Beijing Magtech