1The process performance of Chinese commercial coking coal and comparation with abroad coking coalsBAI Xiang-fei, WANG Yue1-52Discussion on effective and clean utilization of Chinese coal resourcesCHEN Wen-min, BAI Xiang-fei, DING Hua6-153Discussion on how the coal forming age & environment affected the coking property and caking property of coking coalLIU Ming-rui16-184Hydrogeological condition analysis of Qingsong minefieldZENG Fang19-225Discussion on management of low-rank coal storage in power plantsZEN Bin, SHEN Chao-feng, QIN-Ling, ZHANG Lei, LI Xiao-jiang23-256Concept and application of commercial coal nominal top sizeWANG Tao26-27,447Analysis of influencing factors of using phosphorus molybdenum blue spectrophotometric method to determine phosphorus in coalLEI Li-wei, LI Jin-juan28-318Determination of inherent volatile matter in the coalLIU Hu-cai, JIANG Jian-wei, GUO Yun-shan, YAO Sheng-wei32-34,379Quality management practice of Tangshan Huaxia Lihong coal quality testing laboratoryZHANG Jing-xiang, LI A-wei, ZHANG Feng-qing35-3710Discussion and thinking of coal sampling and sample preparation training of thermal power plantWANG Lin-li, KE Wen-ming38-4011Discussion on the effect of coal sampling in coal quality controlLI Yong-fei, REN De-hui41-4212Attentions in measuring the coal calorific valueCHEN Shi-lu, LIU Deng-yun, MA Rong, LU Xiao-hai43-4413Discussion on influencing factors of coulometry method for hydrogen determinationXU Mei-na, ZENG Xian-ju, LIU Ya-dan45-4614Waste benzene recovery and utilizing in experiment of benzene-soluble extract of ligniteHAN Xiao, WANG Shou-tong, ZHAO Wei47-4815Discussion on developing strategy of Chinese energy resourcesGAO Ju-zhong, XING Li-bo49-5416The problems which need attention in standard system of coalbed gas and its applicationXIAO Wen-zhao55-5817Comparing of two kinds of determination methods of coal transportable moisture limitsYUAN Xiao-ying, JIN Wei, LIN Ling-hai, ZHANG Yong-chun59-6118Analysis on feasible way of the separation of coarse coal slime in coal preparation plantLI Yu-yun62-6719The application and maintenance of converter in coal preparation plantWANG Bin68-69,61 