1.
Study on drilling quality of samba 261 drill for VCR stope in Tonglvshan
铜绿山VCR法采场Simba261钻机凿岩质量研究
2.
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
3.
Carbide detachable bit for rock drilling
GB/T6480-1994凿岩用硬质合金钎头
4.
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
5.
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。
6.
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
7.
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
8.
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
9.
Quality Controlling and Utilization Maintaining of JZ-style Sinking Winder
JZ型凿井绞车生产质量控制与使用维护
10.
automatic rotation stopper
自动旋转伸缩式凿岩机
11.
bar rigged drifter
架式风钻，架式凿岩机
12.
a temple chiselled out of solid rock
在岩石中凿出的庙宇.
13.
auto feed drifter
自动推进架式凿岩机
14.
hand-held sinker
向下打眼的手持凿岩机
15.
ENGINEERING GEOLOGICAL CLASSIFICATION FOR ROCK MASS QUALITY OF DAM FOUNDATION IN KARST TERRAIN
岩溶地区坝基岩体质量工程地质分类
16.
Drilling and Blasting Technology of Hard Rock in New Ventilating Shaft in Zhangxin Coal Mine
张新矿新风井坚硬岩石凿岩爆破技术
17.
Optimization of drilling and blasting parameter of fracture rock
破碎矿岩凿岩爆破参数优化方法探讨
18.
The alkali content in the composition of magmatic rock was more, iron content was less.
岩浆岩成分中碱质含量较高,铁质含量较低。