quarryman

During rock projects with drilling-blasting method, there is an escalating trend of the use of downhole rock drilling tools.

在钻爆法施工凿岩工程中,潜孔凿岩钻具的使用量呈上升趋势,特别是高风压潜孔凿岩钻具的产品类型不断增加。

During rock projects with drilling-Masting method, there is an escalating trend of the use of downhole rock drilling tools.

在钻爆法施工凿岩工程中,潜孔凿岩钻具的使用量呈上升趋势,特别是高风压潜孔凿岩钻具的产品类型不断增加、本文以表格形式列出了国际市场上常用的产品类型,为国产高风压潜孔钻具发展提供参考。

Carryng out rock drilling in shifts in the construction of ramp;

凿岩滚班制作业循环在斜坡道施工中的应用

The rock drilling rate, service life and tungsten carbide toothavailability of the series of bits are obviously better than those of chip and button type bits.

该系列钎具凿岩速度、寿命和硬质合金片齿有效利用率均显著优于片状和球齿钎具。

The kinematics equations of the booms of rock drilling are established.

为实现凿岩机器人钻臂在凿岩过程中的自动定位，建立了多关节钻臂的运动学方程；根据钻臂的实际工作特点和工作范围提出了一种求逆解的方法。

Approaching on wear of hard alloy using drilling;

凿岩用硬质合金的磨损行为初探

An Automatic Control Program of Single-hole Drilling Proce-dure with Full-Hydraulic Cavation Drill-Cabel;

全液压掘进钻车单孔凿岩程序自动控制方案

This paper describes the rectification of drilling and b.

文章介绍了通过调整凿岩爆破参数，改变炮孔布置方式而达到降低爆破成本、改善爆破效果的目的。

Effects of Hand Transmitted Vibrations on Sperm Quality in Coal Mine Drillers

手传振动对凿岩工人精液质量的影响

Terminology of rock drilling machines and pneumatic tools

GB/T6247-1986凿岩机械与气动工具名词术语

THE RESEARCH ON ODD NUMBER ROCK DRILLING HOLLOW STEEL ROLLING PROCESS

凿岩用奇数边中空钢的轧制工艺研究

The factory was set up for drill production in TAI-CHUNG.

于台中县青山设工厂，打造凿岩机用钻头。

" Compressors,rock drilling machines and pneumatic tools-Preferred pressures"

GB/T4974-1989压缩机、凿岩机械与气动工具优先压力

Test methods of performance for rock drilling machines and pneumatic tools

GB/T5621-1985凿岩机械与气动工具性能试验方法

Measurement of vibrations in rock drilling machines and pneumatic tools--General

GB/T8910.1-1988凿岩机械与气动工具振动测量方法总则

Measurement of noise emitted by rock drilling machines and pneumatic tools--Engineering method

GB/T5898-1986凿岩机械与气动工具噪声测量方法--工程法

Shanks for rock drilling machines and pneumatic tools and fitting dimensions of chuck bushings

GB/T6374-1986凿岩机械与气动工具尾柄和衬套配合尺寸

To break or chip(stone)with sharp blows, as in shaping flint or obsidian into tools.

敲碎用重击来撞碎或凿碎（石头），如把燧石或黑曜岩石制成工具

Measurement of vibrations in rock drilling machines and pneumatic tools--Measurement for percussive machines

GB/T8910.2-1988凿岩机械与气动工具振动测量方法冲击式机器的测量

Measurement of vibrations in rock drilling machines and pneumatic tools--Measurement for rotation machines

GB/T8910.3-1988凿岩机械与气动工具振动测量方法回转式机器的测量

This drilling machine can be widely used.

所设计的凿岩机试验台完全满足工程要求,并获得推广。

A pointed tool, such as a spike or chisel, used for breaking rock or ore.

钢楔一种如尖铁或凿子等有尖的，用于劈裂岩石或砂石的工具

drill ,interchangeable, of base metal, for hand or machine tolls (excl. those for rock drilling or earth boring)

钻头,可互换式,贱金属制,手工具或机床用（不包括凿岩或钻土用钻机）

Process Study for Cylinder Part of Hammer Drill and Special Fixture Design for Lathe

凿岩机缸体零件的工艺分析及车床专用夹具设计

automatic rotation stopper

自动旋转伸缩式凿岩机

bar rigged drifter

架式风钻，架式凿岩机