1Application of petrographic analysis on coal quality evaluation in coking enterprisesWANG Zhuo1-32Discussion on coal quality system management in coalmineGUO Qing-jie4-63Strengthening quality management to advance enterprise developmentCHEN Wen-hua7-84Practice and exploration about quality management of bought-in coalLONG Xiu-rong9-10,135Determination and application of indexes for evaluating quality of feed coal in coal preparation plantYANG Jiang-qing11-136The derivation and application on the caloric regression equation of commercial coal in mining areaDUAN Li-li14-15,197Discussion on coal valuation based on the dry basis gross caloric valueYAN Hui16-178Discussion on the function of coal quality scheduling system in coal quality managementBAI Bao-cheng18-199Discussion on improving accuracy of determination of fluorine in coalYANG Li20-2110Discussion on increasing the accuracy of determination of volatile matter in coalSUN Yin-bao22-2311Usage and maintenance of automatic calorimeterHU Jing28-3012Discussion on some problems during application of national standard sampling for commercial coalZHANG Hong31-3213Discussion on the total precision of 0.05A2 in coal sample preparation and analysisKANG En-xing, NI Feng, WEI Ning33,3514Discussion on methods of total moisture direct determination in coal sampleZHENG Qian34-3515Discussion on the influnence of coal quality on complex slime gasification technicsZHANG Xiao-hui, WANG Xiao-dong36-3816Error analysis of naphthalene content in coke-oven gas determinationTAN Hong-bo39-4217Improvement and reformation of coal preparation technology system in coking enterpriseLIU Xiao-jing, WANG Shu-yi, CHEN Mei-li50-5118Feasibility study of coarse coal slurry recovery system in Jinyang Coal Preparation PlantSHI Dong-jie, PENG Xiao-bo, GAO Han-jie52-5319Technic-economic analysis of separating Mongolian coal in the Coking PlantZHAO Qian-kun, FENG Wei-zheng, TAO Wei-min, ZHAO Jin-ling54-55,5820Analysis of approach on reducing medium consumption in dense medium preparation plantZHAO Shu-cheng56-58 