1Coking coal resources and production in ChinaDU Ming-hua1-32Informational management and development of coal laboratoryJIANG Chao4-63The system of testing and evaluation for coal quality and measurement managementLI Ze-yuan7-8,114Discussion on the relation of all-round management of coal quality and economic benefitCHEN Xi-jun9-115Discussions about the three measures of promoting coal enterprise developmentYIN Cheng-dong, LI Liang, LI Jian-wen12-136Group compositions and extraction kinetics of different solvent extracts from Yueliangtian CoalXUE Xiao-hong, XIA Mei-li, WANG Xiao-hua14-167Analysis and countermeasure of the factors of GR.I. value dropping of clean coal in Huaibei Coal Preparation PlantWANG Yu17-188How to improve the quality of coal blending by process controlZHAO De-qiang19-20,229The correlation of ash and gross calorific value of Penghu clean coalLUO Zhen-chun21-2210On-line analytical technology principle and applications of coal qualityFANG Quan-guo23-2511The study of improving precision of γ-ray ash content apparatusZHANG Shun-xiang, ZHU Guang-li26-27,3112The application of semiconductor refrigeration technology in calorimeterAN Ke-min, WEN Sheng28-2913Experience in determination of nitrogen content of coalGUO Gui-ping30-3114Status of international standard for manual coal sampling and revision of the corresponding national standardHAN Li-ting32-3415Discussion on the precision of sampling for commerical coal in GB 475-1996KANG Fang35-3616Experience of implementing GB/T 213-2003 《Determination of calorific value of coal》PEI Shao-rui39-4017Shell coal gasification technology and its application in ChinaWANG Jia-ming41-4318The exploration of development pattern on coal chemical engineering industry in lignite areasWEN Ji-yang, JIAO Xiu-qin44-4519The effect and process scheme for combustion of chain-boiler when the quality of coal changedZHANG Qing-lin46-4820The approach of producing management in Laohutai Coal Preparation PlantTIAN Bao-chang49-51 