1.
DF Deep Hole Drilling Machine Electro-hydraulic Servo Control System Design and Research
深孔钻床电液伺服控制系统的设计与研究
2.
Drilling 50 yards deep,
钻孔至50码深处，
3.
Building of Construction Platform for Steel Casing of Bored Piles in Deep Water and Uncovered Rock
深水裸岩河床上钻孔桩护筒施工平台的搭设
4.
guide twist drill
有导径的深孔麻花钻
5.
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
6.
balancing centering machine
平衡-钻中心孔机床
7.
spotfacing and centering machine
平端面钻中心孔机床
8.
Study on drill bit for large diameter core drilling of deep hole in hard rock
硬岩深孔大口径取芯钻进的钻头研究
9.
The machine used for drilling is called a drill press.
用于钻孔的机器叫做“钻床”。
10.
Design and Realization of the Monitoring System in Deep-Sea Drilling Machine
深海中深孔钻机监控系统设计与实现
11.
The first choice is to dig our heads and oil drills deeper into the ground.
第1种选择就是用石油钻孔机钻至更深的地底。
12.
Supporting the use of impact drilling electric drill. Drilling, hole spacing with hole depth should meet the design requirements.
（1）钻孔使用配套冲击电钻.钻孔时,孔洞间距与孔洞深度应满足设计要求.
13.
high efficiency drilling system for small and deep hole
高效小直径深孔钻削系统
14.
STEP HOLE DRILLING METHOD FOR MEASURING PLANE RESIDUAL STRESSES IN DEEP LAYER
钻阶梯形孔法测量深层平面残余应力
15.
Study on High Speed Drilling in Deep 38CrMoAl Steel Tube;
38CrMoAl料筒高速深孔钻进研究
16.
The CAD and research of drill bit escape of clips for the deep hole processing drill
深孔加工钻头排屑研究及CAD设计
17.
Stability and Bifurcation of the Drilling Shaft System in Processing Deep Hole Based on Boring and Trepanning Association
BTA深孔加工钻杆系统的稳定性及分岔
18.
Experimental research on the system performance in near-dry deep hole drilling
亚干式深孔钻削系统性能的试验研究