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| 2019, Vol. 56(5): 85-91 DOI: | ||
| Research on Stratified Thickness Inversion of Roadway Composite Roof | ||
| (1 State Key Laboratory of Coal Mine Disaster Dynamics and Control，College of Resources and Environmental Science, Chongqing University, Chongqing 400044；2 China Gezhouba Group Explosive Co., Ltd., Chongqing 401121) | ||
| Received null Revised null | ||
| Supporting info | ||
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