In this article the measurement methods of drill shear wave velocity, principles and site classification are briefly introduced.
介绍了场地钻孔剪切波的测试方法、原理及场地类别划分方法 ,并对其进行了归纳、总结 ,指出选择适当的剪切波测试方法并作好剪切波测试是对建筑场地进行类别划分的关
Discussion on factors affecting property of deep hole drilling cutting oil;
影响深孔钻切削油性能因素的探讨
Application of drill hole technology in inclined shaft's dewatering system;
钻孔技术在斜井排水中的应用
3D reconstruction from section plane views based on drill hole information;
基于钻孔信息的二维剖面图的三维实体重建
Study on the equipment and machining methed of drilling-tapping once shaping;
钻孔和攻丝一次成形的加工方法及设备研究
Experimental simulation of drilling impact of coal sample in three-axle enclosed pressure;
煤样三轴围压钻孔损伤演化冲击实验模拟
Study on drilling performance of swiveling conic abrasive jet;
旋转锥形磨料射流钻孔性能的研究
The sorker was drilling.
此工人在用钻孔机钻孔。
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
kelly for well-drilling machiens
旋转钻孔,钻井机用
A tool used for drilling.
钻头用于钻孔的工具
boring method (of pulp sampling)
（纸浆取样）钻孔法
Drilling 50 yards deep,
钻孔至50码深处，
Using a drill, he bore a hole through the wood.
他用钻孔机在木头上钻了一个孔。
A hole or passage made by or as if by use of a drill.
钻孔，打洞用或似用钻打孔或通道
To make a hole in or through something with or as if with a drill.
钻孔，打洞用或似用钻打洞或穿孔
To make a hole in or through, with or as if with a drill.
钻，凿，开洞用或似用钻打洞或钻孔
To make a hole with or as if with a drill.
钻孔用钻或类似钻的工具打洞
A needle-shaped drill for boring holes in rock or masonry.
钻头，钻石器，钻孔器用于在岩石或砖石上钻孔的针形钻
A pointed and threaded tool for drilling and boring that is secured in a brace, bitstock, or drill press.
钻头曲柄、钻柄或钻床之上用于钻孔的尖头工具
dowelling in the length, of coniferous wood
针叶树木板,经纵钻孔的
combined pipe tap and drill
管用钻孔攻丝复合刀具
rotary wash-boring equipment
旋转式水冲钻孔设备
borehole content analyzer
钻孔矿物含量分析仪
tap(ping) drill
螺丝孔钻，螺丝底孔钻