1.
It provides reference in order to evaluate the resistance function of clay layer in under-water Honing.
为今后评价黏土层在水体下采煤中的阻隔水作用提供理论参考。
2.
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
3.
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
4.
The Surface Subsidence Observation Analysis and Research of Safely Underwater Mining
水体下安全采煤的地表岩移观测分析研究
5.
Water Environmental Effects Caused by Rapid Slice Mining for Medium-Thickness Coal Seam Under Water Body
水体下中厚煤层分层快速综采的水环境效应研究
6.
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
7.
Study on the mining technology in seam with big dip and great water and high gas-content and extra-thickness
推覆体下大倾角大水高瓦斯特厚煤层开采技术研究
8.
Approach on hydrological geology characteristic and "Three Band" height bellow nappe 13-1 seam
推覆体下13—1煤层综放开采水文地质特征及“三带”高度的探讨
9.
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
10.
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。
11.
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
12.
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
13.
A study of coal resources mining under the Zhanghe Reservoir
漳河水库下煤炭资源开采可行性研究
14.
Water Prevention and Control Technology of Seam Mining Under Thin Floor Condition
薄层底板条件下煤层开采防治水技术
15.
Mechanism of Water-Coal Mixture Burst in Exploiting Steeply-Inclined Thick Coal Seam
急倾斜厚煤层开采水煤体溃泄机理研究
16.
Feasibility Study and Mining Measures on Coal Pillars Mining Under Surface River Water Body
地表河流水体煤柱回采可行性研究及开采措施
17.
Comparsion study on water inrush prediction methods of coal mining under rich water aquifer in underground mine
富含水层下煤矿开采涌水量预测方法对比研究
18.
Study on combined mining and exploration for the thin coal seams very close under gob water
极近距离老空水下薄煤层联合开采探测研究