Drill rig and its accessory tools were developed to meet the technical requirements of drilling Geo physical blast holes in soil and rock among mountainous and hilly area in China.
为满足我国山地丘陵地区物探爆破孔施工技术的要求，研究适合土层、岩层钻进用的钻机及工具，对钻机的配套设备进行了开发研究。
A simple working platform for underwater drilling blast and the practical method to removing and orientating the ship are introduced in the paper.
文章介绍了一种简易的水下钻孔爆破施工平台及实用的移船定位方法，改进了传统的药包加工及装填工艺。
Drillers in this unit group operate mobile drilling machines to bore blast holes in open-pit mines and quarries and to bore holes for blasting and for building foundations at construction sites.
该项中的钻探工人操作移动钻孔机实施露天矿和采石场的钻孔爆破以及建筑工地的建筑物基础设施的爆破工作。
This paper describes the theory, features and testing results of the air reverse circulation drilling process used in geo physical blast hole drilling.
概述了空气反循环钻进工艺应用于物探爆破孔施工的原理、特点及其试验应用情况。
May operate air-track, rotary, down-the-hole or other drilling machines to drill blast holes or may direct drilling of blast holes.
操作空气运作轨道，旋转，向下钻孔机或其他钻探机钻爆破洞或直接钻爆破洞。
For mining pits, especially those open-pit mines where water accumulation is serious, it is difficult to achieve ideal blasting effect in blasting-drilling by general blast methods.
对于采场尤其是爆破钻孔积水严重的露天矿山，一般的爆破方法难以取得理想的爆破效果。
As the main material of changing drilling fluid to cement slurry, blast furnace water quenched slag has attracted much attention and got initial success.
高炉水淬矿渣作为泥浆转化为水泥浆技术中的主体材料，已引起广泛重视并获得初步成功。
As the main material of changing drilling fluid to cement slurry, blast furnace water quenched slag has attracted much attention and got initial success.
高炉水淬矿渣作为泥浆转化为水泥浆技术中的主体材料，已引起广泛重视并获得初步成功。
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