1.
Research on the Cutting Performance of the Horniness Alloy Drill with Larger Length to Dirmeter
大长径比整体硬质合金深孔钻头的切削性能分析
2.
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
3.
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
4.
Drilling 50 yards deep,
钻孔至50码深处，
5.
A tool used for drilling.
钻头用于钻孔的工具
6.
The max. depth of drilling is about 50 times of drill tools dia and have to see material for drill specially size.
本机种钻孔深度以钻头直径50倍为标准,特殊规格需视加工材质定.
7.
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
8.
Using a drill, he bore a hole through the wood.
他用钻孔机在木头上钻了一个孔。
9.
Drilling is cutting a hole with a drill.
钻削就是用钻头钻一个孔。
10.
guide twist drill
有导径的深孔麻花钻
11.
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
12.
Many of the stones have holes drilled through them.
许多石头钱都钻有孔。
13.
To drive(a screw or bolt)into a countersink.
将钻或螺栓置入埋头孔
14.
bolt or cotter-pin drill
螺栓或开尾销孔钻头
15.
To make a hole in (a hard material) with a drill
用钻头在(硬材料)上打孔.
16.
Most drilling in metal is done with a twist drill.
大多数金属钻孔用的是麻花钻头。
17.
the round part of the bit by which it is held in the drill.
钻头上的控制钻孔机的圆形部分。
18.
Experiment Research of the Drill Fracture Criterion in Inclined Hole Drilling
斜孔钻削中钻头折断的判据实验研究