机译:Comparison and analysis of subglacial bedrock core drilling technology in Polar Regions
Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China;
Jilin Univ, Polar Res Ctr, Changchun 130026, Peoples R China;
Ice core drilling technology; Subglacial bedrock drilling; Rig rotary drilling; Wire-line core drilling; Coiled tubing drilling; Electromechanical drilling;