detachable bit

用法例句

Research of diamond weak combined bit for high geo-stress stratum drilling;

弱包镶金刚石钻头在高地应力地层中的应用研究

Research into the new electroplating weak-holding diamond bits;

新型电镀弱包镶金刚石钻头研制

Research,development and application of the series core drilling bit for uranium exploration;

铀矿勘查岩心钻探系列钻头的研制、开发与应用

unit-type drill head

组合钻床钻头, 标准钻头

drill(ing) head

钻头; 主轴头; 钻床床头箱; 钻削动力头;钻头头部, 钎头

part of a drill that grips the bit

夹头（钻或钻床上用以夹住钻头的部分）.

a small bit that drills a first hole to guide a larger drill.

钻凿初洞来导引大钻头的一种小钻头。

easing the bit in

钻头轻压慢转钻进地层

A tool used for drilling.

钻头用于钻孔的工具

a bit used in drilling for oil.

油田钻井使用的钻头。

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

eggbeater PDC bit

打蛋器型PDC钻头

Drilling is cutting a hole with a drill.

钻削就是用钻头钻一个孔。

Comparative analysis of drilling characteristics of dia- mond bits and roller bits

金刚石钻头与牙轮钻头钻井特点对比分析

bit cutting angle

钻冠的尖度，钻头磨角，钎子头刃角

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

An awl with a beveled tip, used to make holes in wood for brads or screws.

锥钻，打眼钉钻头倾斜的钻子，用于在木头上钻孔以钉角钉或螺钉

a thin bit a center point and cutting edges on either side.

一头是圆头、一头是切边的一种瘦钻头。

a drilling bit with cutting edges usually hard-tipped against wear.

有靠着钻身的硬顶和切边的一种钻井钻头。

7.12 Trip up at once, pull the bit into the casing.

立即起钻，将钻头提到套管内。

Sometimes he sends his drill more than a mile into the earth.

有时他得把钻头钻入地下一英里深。