1.
Application of Bit Water Way in HDD
水平定向钻进扩孔钻头水口应用分析
2.
a bit for enlarging the upper part of a hole.
用来扩大凿孔上部的一种钻头。
3.
A hole with the top part enlarged so that the head of a screw or bolt will lie flush with or below the surface.
埋头孔顶部扩大的孔，为使钻或螺栓的头与地面相平或在地面以下
4.
A tool used for drilling.
钻头用于钻孔的工具
5.
counterbore with guide
有导柱的平底扩充孔钻
6.
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
7.
Using a drill, he bore a hole through the wood.
他用钻孔机在木头上钻了一个孔。
8.
Drilling is cutting a hole with a drill.
钻削就是用钻头钻一个孔。
9.
To form, shape, taper, or enlarge(a hole) with or as if with a reamer.
扩，整用扩孔钻或仿佛是用扩张钻去造出、成形出、整出或扩大（某个孔）
10.
A selfmade apparatus called" fish scalelike grinding head" is employed to solve the problem, and its operation and structure are introduced.
介绍该厂用自制鱼鳞磨头解决轴孔在钻床上扩孔120μ的具体操作方法及鱼鳞磨头的结构。
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.
A tapered, serrated tool used to shape or enlarge a hole.
手钻用来钻孔，或扩大孔的尖细带齿的工具
17.
three point neat-bit reamer
三点式近钻头扩眼器
18.
To shape or enlarge(a hole)with a tapered, serrated tool.
凿孔扩大用带齿的尖的工具钻或扩大（孔）