1.
Record of Palaeoenvironment and Palaeoclimate Since Last Interglacial from Xinghua Core at Northern Jiangsu Basin;
苏北盆地兴化钻孔末次间冰期以来的古气候环境记录
2.
The Optimal Design About the Trajectory of Non dig Guided Boring
非开挖导向钻进钻孔轨迹的优化设计
3.
Numerical Simulation of Cutting Forces Generated by Drills with Indexable Inserts and Optimization for Drill Parameters;
可转位浅孔钻钻削力数值仿真及参数优化
4.
Application of Drilling Engineering in Fracturing Test Borehole of Gasification Coal Mining
钻探工程在气化采煤压裂试验钻孔中的应用
5.
tap(ping) drill
螺丝孔钻，螺丝底孔钻
6.
The sorker was drilling.
此工人在用钻孔机钻孔。
7.
Type selection of ф3.40m large diameter and deep hole drilling equipment for No 3 main tower pier of Wuhan Tianxingzhou great Yantze River bridge;
武汉天兴洲长江大桥3号主塔墩ф3.40m大直径深孔钻孔设备选型
8.
The Parameters Optimization of the Reverse Circulation DTH Hammer and Studies on Its Drilling Technique;
全孔反循环潜孔锤参数优化及其钻进工艺研究
9.
A Study on the Effect of Soil Layer Nature and Drilling Machine on Variation of Cavity Diameter of Cast-In-Place Bored Piles
土层性质及成孔机具对钻孔灌注桩孔径变化的影响
10.
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
11.
Construction and Quality Control of large Diameter Predrilled Cast-in-Place Concrete pile for No.2 Bridge at Jiubei Road in Yixing City
宜兴氿北路二号桥大直径钻孔灌注桩的施工与质量控制
12.
kelly for well-drilling machiens
旋转钻孔,钻井机用
13.
A tool used for drilling.
钻头用于钻孔的工具
14.
Research of Application and Drilling Tool Optimization of Reverse Circulation Drilling Technique with Hollow-Through DTH Hammer
贯通式潜孔锤反循环钻进技术钻具优化及应用研究
15.
boring method (of pulp sampling)
（纸浆取样）钻孔法
16.
Drilling 50 yards deep,
钻孔至50码深处，
17.
The Technique of Bore Cast-in place Pile with Post-Grouting for Ovoid Digester Work
卵形消化池工程中的后压浆钻孔灌注桩技术
18.
Research and Discussion on Optimization of Automaticly Drilling Procedure of Compartment Vehicle Production Line;
厢式车生产线自动钻孔工序优化研究与探讨