1Research on China's coal import status and imported coal qualityLUO Yun-fei, JIANG Ying, TU Hua1-52Study on the technical route and key factors of automatic coal petrographyBAI Xiang-fei6-123Study on the methods of testing precision of manual sampling and preparation for commercial coalKONG Ling-po, ZHANG Bao-qing, HAN Li-ting13-164Overview of test method standard for solid biofuelsPI Zhong-yuan17-195Study on determination points of vitrinite random reflectance for mixed coal in GB/T 6948-2008LIU Cheng-dong, LIU Ping, ZHANG Xiao-yan20-21,346Discussion on national standard of GB/T 482-2008《《Sampling of coal seams》》ZHAO Xue-dao22-22,367Discussion on four-stage method of coal preparation and separated-stage checking of testing varianceSUN Gang23-268Discussion on the operation of Liebig method in the carbon-hydrogen determination of the coalLI Ting27-309Discussion on the factor of total moisture during the coal evaluation by calorific valueWEI Guo-qing31-3210Study on the influence of sample's yield rate to determination of grindability index of coalYANG Yi-mei33-3411The experience of plastic layer index determinationQIN Huai35-3612Discussion on strengthening coal quality management and improving reasonable miningYANG Man-yi37-3813Discussion on the effect of different heating rate and steam partial pressure on char gasification reactivityDING Hua39-41,4514Testing study on preparing biomass coal water slurry using urban sludge and black liquorDUAN Jing, DUAN Qing-bing42-4515The industrial experiment and analysis of XJN-14 Mechanical Agitated Flotation Machine in Zhuangzi Coal Preparation PlantZHU Yong-wu, WANG Chuan-jin, YAN Bao-zhi, WANG Peng, LI Zhen-qi46-5016Practice and discussion on 3GDMC1400/1000AI hydrocyclone in production department of Matou Coal Preparation PlantJIANG Hong-bo51-5317Application of KZG250/1600 fast open membrane press filter in Xinghua Coal Preparation PlantGAO Fu-xin54-5518The application of LWZ1200×1800A centrifugal dehydrator of sedimentation filtration dewatering type in Didao Coal Preparation PlantLIU Li56-57,6519Discussion on adjusting the cyclone parameters and controlling the mixed-coal's heat valueLI Jing58-5920Discussion on the reformation of the coal transport system and the optimization of the operation modeQIAO De-hui, ZHANG Ke-fei, YIN Jin-mei60-62 