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(1. Intelligent Unmanned Mining Institute, North China Institute of Science and Technology, Beijing 101601; 2. Hebei Key Laboratory of Intelligent Mining Technology, Beijing 101601; 3. State Key Laboratory for Geomechanics & Deep Under-ground Engineering, China University of Mining and Technology (Beijing), Beijing 100083; 4. China Coal Research In-stitute, Beijing 100013; 5. College of Safety Engineering, North China Institute of Science & Technology, Beijing 101601; 6. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing 100083) |
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