1) boring drill
取孔钻
1.
Study on fabrication and cutting performance of brazed diamond boring drill;
钎焊金刚石取孔钻的制备及其钻削性能研究
2) diamond drill bit
金刚石取孔钻
1.
Fabrication of mono-layer diamond drill bit by brazing and its microstructure on the interfaces;
钎焊法制造单层金刚石取孔钻及其界面微观结构
3) access hole
存取孔
4) the pore solution extraction method
萃取孔溶液法
1.
The progress of search on the pore solution extraction method for determining available alkalis of Concrete is discussed.
引证了混凝土有效碱是影响碱集料反应的关键因素 ,介绍了萃取孔溶液技术和测定混凝土有效碱的过程 ,讨论了萃取孔溶液法测定混凝土有效碱的研究进展。
补充资料：冻土钻(见取土钻)
冻土钻(见取土钻)
dongtuzuan冻土钻见取土钻
说明：补充资料仅用于学习参考，请勿用于其它任何用途。