机译:煤层内抽放瓦斯技术的演变与应用
Drilling Division, Valley Longwall International Pry Ltd., Thornton, New South Wales 2322, Australia;
School of Civil, Mining & Environmental Engineering, University of Wollongong, Wollongong, New South Wales 2522, Australia;
School of Civil, Mining & Environmental Engineering, University of Wollongong, Wollongong, New South Wales 2522, Australia;
School of Civil, Mining & Environmental Engineering, University of Wollongong, Wollongong, New South Wales 2522, Australia;