1Discussion on the selection of method and model of pre-treatment in coal NIRS analysisWANG Sheng-hao, LI Zhi, ZHENG Wei-ping, ZHAO Dian-rui, HU Jun-yu1-42Analysis on the effect of particle size of general analysis test sample on coal testing repeatabilityCHEN Tong, FENG Tao, WANG Jun-hui, TANG Zhao-guan5-93Discussion on the coal quality management during the course of open mining of Taixi CoalZHANG Xue-jun10-12,154Discussion on the standardized management of original testing data in coal labsSHAO Ying13-155Research on the influence of the additives in Ca-based sulfur retention sorbentWEI Ning16-186Discussion on the geological characteristics and gas-bearing properties of mineable coal seams in Xinda mine areaZENG Fang19-217Discussion on the problems and improvement of the quality management system in Tianzhuang Coal Preparation PlantSUN Xiao-hua22-23,278Discussion on type selection of the magnetic separator for coal transportation in power plantLI Zhong-jun, ZHANG Bo, LI Xiang-yang24-279Discussion on the optimizing coal blending to increase the economic benefitsZHU Qing-song28-2910Analysis on the causes and measures of calorific value difference in power plantsZHAO Shu-mei30-32,3511Discussion on the problems concerned to bias test for coal sample preparationSUN Gang, YANG Hua-yu, WU Zeng-li, ZHANG Bo33-3512Research on the determination of sulfur trioxide in ash of solid biofuelsXING Xiu-yun36-37,4413Evaluation and analysis of uncertainty in determination of dry basis ash yield of coalJIA Jun-ping38-4114Discussion on the influencing factors of viscosity determination of coal water slurryZHANG Ya-xin, HU Yong-chang42-4415Discussion on the representative guarantee of selected coal samples by mechanical sampling device from the automobile vehicleCHU Hua-shan45-48,5416Discussion on some notice in chromatograph with oxygen adsorption method in spontaneous combustion tendency determination of coalWANG Wen-chao49-5017Study on the additive preparation by using modified lignosulfonate for gasifying coal water mixture (CWM)WANG Guo-fang51-5418Suggestion on the conversion of index factor of electric consumption per unit product of coal washingZHANG Guo-guang, LUO Yun-fei, SHENG Ming55-56,6819Discussion on the prospect of steam coal separation from the process effect of coking coal separation by three-product heavy medium cyclone in Tianchen Coal Preparation PlantXU Jian-jun57-6020Practice on the sewage treatment and comprehensive utilization in Tucheng CoalmineZENG Jiang, LIU Ya, YANG Guang-you61-63 