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2. Ministry of Construction of the People's Republic of China, Code for Mine Design of Coal Industry, Mine heat harm control, 2006, pp. 32-34.
3. Ningxia Coal Design & Research Institute Co. Ltd. Initial Design of Mining Area 15, 16 in Yangchangwan Coal Mine, Geothermal temperature, 2014, pp. 162-168.
4. State Administration of Work Safety, Prevention and control of ventilation gas and dust, in: Safety Regulations for Operations in Mines, 2011, 120 pages.