唐承高速公路唐承界至南小营段铁矿采空区勘察与治理技术研究
당승고속공로당승계지남소영단철광채공구감찰여치리기술연구
Survey and Treatment Technique of Iron Mine Exploitation District in Tangshan-chengde Highway from Tangshan-chengde Boundary to Southern Xiaoying