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1.
Study on Laws of Rock Pressure Appearance at Blasting Caving Coal Face in Hezhuang Coal Mine
何庄煤矿炮采放顶煤工作面矿压显现规律研究
2.
Research on Law of the Presentation of the Mine Pressure with caving-working-face
炮采放顶煤工作面矿压显现规律研究
3.
Thin seam mining coal face pressure gun control and production safety
薄煤层炮采工作面矿压控制与安全生产
4.
Study on Strata-pressure Behavior in Blasting Face of Soft Seams with Large Inclined Angle
大倾角松软煤层炮采工作面矿压显现规律研究
5.
shotgun marriage [ wedding ]
【采矿】不平衡爆破的炮眼
6.
Research of Automatic Sprinkling Water Control System before Shooting of Coal Mine
煤矿放炮前自动洒水控制系统的研究
7.
Mine Pillars Mining with Small-scale Coal Mining Approach in Small Coal Mine
小型煤矿采用小进路采矿法的矿柱回采
8.
A machine for the automatic extraction of minerals, especially of coal.
采矿机自动采掘矿藏,尤指煤的机器
9.
few exploitable coal-mines
少量可开采的煤矿.
10.
They extract coal from seams
他们从矿层中采煤。
11.
the mining of ore or coal from an open mine.
从敞开的矿井提取矿石或煤的采矿。
12.
Application of Saw Mining at No.43004 Coal Face in Dongfeng Coal Mine
锯式采煤法在东风煤矿43004采煤工作面的应用
13.
Research and Application of Full-mechanized Caving Mining with High Mining Height in Huaibei Mining Area
淮北矿区大采高综采放顶煤开采技术
14.
Practice of "Two Wining and One Caving" Technique on Blasting and Top-coal Caving Working Face
“两采一放”工艺在炮采放顶煤工作面的实践
15.
Application of Spillplate in The Way of "Folding,Hanging" at Blasting Mining Working Face in Compound Mining Coal Seam
折叠、悬挂式挡煤板在复采煤层炮采工作面的应用
16.
of coal, as contrasted with coal obtained from a strip mine.
关于煤,与从露天矿中开采的煤相对的。
17.
CBM Development and Utilization for Green Exploitation of Coal Mine
开发利用煤层气 实现煤矿绿色开采
18.
Study on Top Coal Caving Technology of Horizontal Section in Steep Seam in Weihuliang;
苇湖梁煤矿急倾斜综采放煤工艺研究