scholarly journals Analysis of proper position of extraction roadway on roof in high-strength gas emission workface: A case study of Zhaozhuang coal mine in southern Qinshui Basin

2021 ◽  
Vol 7 ◽  
pp. 8834-8848
Author(s):  
Wei Wang ◽  
Jianwei Zhang ◽  
Xiangjun Chen ◽  
Yanwei Liu ◽  
Hong Li ◽  
...  
Author(s):  
Hou Jie ◽  
Zou Changchun ◽  
Huang Zhaohui ◽  
Xiao Liang ◽  
Yang Yuqing ◽  
...  

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