WU Hao
The Second Exploration Bureau of China National Administration of Coal Geology, Zhuozhou Hebei 072750, China;China University of Geosciences, Beijing 100083, China1.The Second Exploration Bureau of China National Administration of Coal Geology, Zhuozhou Hebei 072750, China;2.China University of Geosciences, Beijing 100083, China
P634.3;TH137.7