5.geophysical prospecting for coal
6.STUDY ON THE REGION SELECTION OF CBM DEVELOPMENT IN FUXIN COAL FIELD
7.an industrial city in the Donets Basin.
8.The ash may be from the north east of theDatong coal field.
9.Study of CBM Exploitation Potential in Huainan Coalfield
10.Research on Comprehensive Geological EnvironmentalQuality of Jurassic Coal Field in Ordos