1.
The application of smooth blasting technique in chemical mine tunnel excavation
光面爆破技术在化学矿山井巷掘进中的应用
2.
Study on the maximal driving length of dummy drift in uranium mines
铀矿井独头巷道最大掘进长度的研究
3.
Probe into ventilation at long distance driving drift in high yield and high efficiency mine
对高产高效矿井长距离掘进巷道通风的探讨
4.
Research of fast comprehensive tunnelling technology on deep well highland pigeonhole rock Tunnel
深井高地压岩石巷道快速综合掘进技术研究
5.
Allocation of Mechanized Operation Line for Rapid Heading in Deep Mine Large Cross Section Rock Roadway
深井大断面岩巷快速掘进机械化作业线配置
6.
The main shafts are lighted by electric lights stung up as the tunneling progresses. Miners usually have lights on their hats.
随着井巷向前掘进，主要井巷用串联起来的电灯照明。矿工的帽子上通常都装有矿灯。
7.
Comprehensive Prevention Technology on Rock Burst and Gas Outburst in Deep Well Driving
深井煤巷掘进冲击地压与瓦斯突出综合防治技术
8.
A level in a mine driven so that it intersects a vein of ore.
石门，横巷矿井内掘出的平巷，它与矿脉相交
9.
Research on the suitable support form of deep gob-side entry in fully mechanized top coal caving mining
深井综放沿空掘巷合理支护形式研究
10.
According to the reality of Malan coal mine, analyzes the factors of filling water one by one when dug up. Puts forward the corresponding measures of prophylaxis and treatment.
结合马兰矿实际,对采掘生产中井巷的充水因素进行了逐一分析,并提出了相应的防治措施。
11.
The Study of the Celerity Single Tunneling Technique of the Horizontal Tunnel in the Second Shizuishan Mining;
石嘴山二矿水平巷道单巷快速掘进技术研究
12.
Smooth Surface Demolition in Rock Alley Driving the Importance for That Tunnel Becomes Shape
光面爆破在岩巷掘进时对巷道成形的重要性
13.
The Use and Improvement of MK3--the First Stone Drift Driving Machine in China;
国内首台MK3岩巷掘进机的使用与改进
14.
When the mineral veins are buried deep in the earth, it is necessary to excavate shafts and tunnels to reach the ore body. There are many types of shafts andtunnels in a mine.
如果矿脉在地下埋藏较深，就必须挖掘井巷以通达矿体。井下井巷的种类有许多种。
15.
long hole raising
深孔爆破法天井掘进
16.
Light Drills Digs "Three soft" Coal Bed Coal Lane Tunneling Application
轻型钻掘机在“三软”煤层煤巷掘进中的应用
17.
Brief Talks of Enhancing the Speed of Rapid Excavation of Comprehensive Bolting Support Tunnel
提高综掘锚杆支护巷道快速掘进速度的探讨
18.
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