煤炭科学技术
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Rapid excavation and supporting technology of ultra-thick top coal roadwaybased on excavation and bolting integration
LIU Yuedong, LIN Jian,YANG Jianwei,JIANG Pengfei
1��China Coal Research Institute, Beijing100013, China;2��Mining and Design Department,Tiandi Science and Technology Company Limited, Beijing100013, China

 

             

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