1.
Study of Waste Blasting Parameter Optimization of Medium Depth Hole in Qianchang Copper-Iron Mine
前常铜铁矿中深孔凿岩爆破参数优化研究
2.
To lower blasted boulder yield is one of the most important technical considerations in deep-hole blasting operations of mine.
降低深孔爆破落矿大块率是矿山凿岩中的一个重要课题。
3.
deep gorges gouged hundreds of metres into the bedrock;
深峡在岩床中凿人了几百米；
4.
Development of Software for Large /Moderate Diameter Blasthole Drilling and Blasting CAD
大中孔凿岩爆破计算机辅助设计软件开发与研究
5.
a temple chiselled out of solid rock
在岩石中凿出的庙宇.
6.
Drill jig size calculation of the double inclined holes in the handle of YT 24 rock drill
YT24型凿岩机柄体双斜孔钻模尺寸计算
7.
Application Research on Medium-length Hole Blasting in Hard Rock Drift Excavation
中深孔爆破在硬岩施工中的应用研究
8.
A machine that bores through hard surfaces, used especially for tunneling through rock.
凿岩机一种钻孔于坚硬表面的机器，尤用作凿穿岩石的隧道
9.
Middle-Deep Bore Blasting Experimental Study on Hard Rock Tunnel Heading
硬岩巷道掘进的中深孔爆破试验研究
10.
Middle and Deep Hole Controlled Blasting of Rock Cut in the Complicated Surroundings;
复杂环境下路堑土岩中深孔控制爆破
11.
Experiment and Research on Deep Borehole Blasting in Mine Rock Roadway with Thick Soft and Weak Parting
厚软弱夹层岩巷中深孔爆破试验研究
12.
Syudy on Porous Medium Model of Soft Rock in Deep Rock Mechanics
深部岩体力学中软岩多孔介质模型的研究
13.
deep shaft sinking technique in ancient China
中国古代深井开凿技术
14.
The enterprise beijing langjin photoelectric industry co., ltd. offers Labelling machine among other things .
公司提供大量的穿孔机、凿岩机和贴标签机。
15.
Application of Medium-Deep-Hole Opposite Smooth Blasting Technology in Rock Tunnelling
中深孔反向光面爆破技术在岩石掘进中的应用
16.
Application of Middle Deep Hole Smooth Blast in Rock Road Construction
中深孔光爆在全岩平巷施工中推广应用
17.
Technical Study and Application on Middle Deep Hole Smooth Blasting for Hard Rock Tunnel;
硬岩巷道中深孔光面爆破技术研究和应用
18.
Rock drilling equipment--Hollow drill steels in bar form
GB/T1301-1994凿岩钎杆用中空钢