1Research progress on rotary cutting drilling testing method for rock mechanics parametersWANG Qi, GAO Hongke, FENG Fan333-3432Water-source heat pump in governance of heat hazard in deep mines-An example of Jinfeng Gold Mine,GuizhouWEN Zhijie, PEI Peng, ZHAO Jie, SUN Jinghu, TANG Long344-3563Research progress on the evolution and control of overlying rock arch structure in coal miningZHANG Cun, REN Zhaopeng, LI Quansheng, GUO Junting357-3674Research progress and prospect of governance and utilization of coal mining subsid-ence areas with high groundwater levelJIANG Ning, JIANG Chunlin, ZHANG Genwang, GUO Qingbiao368-3805Advances in transparent characterization and targeted intervention for fracture-seepage in deep sandstone uranium leaching systemsWANG Leiming, LI Shuo, YIN Shenghua, CHENG Liang, ZHANG Chao, CHEN Wei, XUE Senmiao381-3966Numerical simulation and application of three-dimensional high-density electrical method in shallow coal seam fire areaXIE Haijun, LIANG Yongqi, LI Wanlu, LIU Ruiqing, CHENG Jinhao397-4077Characteristics and zoning control of coal-electricity sites in the Ningdong coal-related industrial zoneFENG Xiaotong, FENG Jianquan, SHI Zhiyu, REN Yuxin, DONG Jihong408-4238Research progress of high gradient magnetic separator and its magnetic mediaZHANG Xinyu, CHENG Shaokai, LI Wenbo424-4359Green mine resource and environment balance system:Balance of energy conserva-tion and utilizationWEI Bowei, WANG Liang, LI Wentao, HAN Yu436-44210Research progress on ammonia-coal co-combustion technologyCHEN Yongxu, HOU Yujie, WANG Chang'an, DAI Liangxu, JIA Zixiu, LI Yuhang, CHE Defu443-45611Design and verification of a multifunctional coal mine quadruped robot system based on digital twinXIE Jiacheng, ZHANG Jiapeng, LIU Shuguang, WANG Xuewen, HUANG Zhuo, QIN Lang, XIAO Zhijie457-470