1.
Water Controlled Coal Mining Technology Under Cracking Strata of Super Thick Gravel Layer with High Pressurized Water
高水压巨厚砂砾层裂隙岩体下控水采煤技术
2.
and control the productive schedule.
采取煤壁浅孔注水,控制生产进度;
3.
Study on Damage Mechanics of Groundwater and Control Methods in the Mining of Shallow Embedding Coal;
浅埋煤层开采对潜水的损害与控制方法研究
4.
Study on Structure and Control of Surrounding Rock in Mining Steep Seams Using Horizontal Section Top-Coal Caving;
急斜煤层水平分段放顶煤开采围岩结构及其控制性研究
5.
Developmental Research of the Autocontrol Drainage System under Coal Mine Well;
煤矿井工开采排水设备自动控制系统的开发研究
6.
Study on the Reclimaning of Fault Waterproof Coal Pillar in Mafang Mine;
马坊煤矿断层防水煤柱开采回收研究
7.
Application of Hydraulic Coal Mining in Guhan Joint Venture Coal Mine
水力采煤在襄垣古韩联营煤矿的应用
8.
Comprehensive Prevention and Control Technology of Goaf Water for First Coal Pillar Mining Face in Mining Dip Gateway
回采下山巷道煤柱首采面采空水综合防治技术
9.
Technology of Gas Outburst Elimination,Gas and Coal Dust Management with Water Injection in Coal Seam at Coal Face in "Three Soft" Coal Seam
“三软”煤层采煤工作面煤层注水消突治理瓦斯、煤尘技术
10.
Functions of Structural Control of Coal Prospecting and Mining Methods in Xianting Coalfield;
仙亭煤矿构造控煤作用与探采方法研究
11.
They fxtract ten million ton of coal each year from underwater mines
他们每年从水下煤矿中采掘一千万吨煤
12.
They extract ten millions ton of coal each year from underwater mines.
他们每年从水下煤矿中采掘一千万吨煤。
13.
Technology Application Study on Hydraulic Pressing in Coal Face of Medium Hard Seam
中硬煤层采煤工作面水力压挤技术应用研究
14.
Coal mining production process and control the impact of groundwater
煤矿采煤生产过程对地下水的影响与防治
15.
Risk evaluation of water inrush from seam floor during mining of lower group in Zhaizhen coal mine
翟镇煤矿下组煤开采底板突水危险性评价
16.
Evaluation on 3~# coal mining with water pressure condition in Guhan coal mine
古韩联营煤矿3~#煤层带水压开采条件评价
17.
The development and prospec of safe technology on excavating coal under water in china
我国煤矿水体下安全采煤技术的发展及展望
18.
The discussion about waterproof mine columniationpillar width in Small coal mines bare area
小煤窑采空区留设防水煤柱合理宽度的探讨