巨石、中粗砂填海区风动潜孔锤引孔钻进工艺应用的研究

巨石、中粗砂填海区风动潜孔锤引孔钻进工艺应用的研究的英文翻译

基本释义

• APPLICATION OF GUIDED-BORING TECHNOLOGY OF PNEUMATIC DOWN-THE-HOLE HAMMER IN MEGALITHIC AND COARSE-SAND SEE RECLAMATION