1) multiple splitting coalseam
多分裂煤层
3) coal seam fracture
煤层裂隙
1.
Study on seismic waveform classification technique for detection of coal seam fracture
煤层裂隙探测的地震波形分类技术研究
4) hydraulic fracturing in coal reservoir
煤层压裂
5) multiple coal seams
多煤层
1.
Improving clean coal quality by the way of multiple coal seams blended washing;
多煤层原煤入选 稳定精煤质量
2.
The relation between district raise in the multiple coal seams and its pillars;
多煤层采区上山与煤柱之间的关系
3.
Theoretic study by simulation method on the strip mining of multiple coal seams;
多煤层条带开采模拟理论研究
6) multi-layer fracturing
多层压裂
1.
Research and application of the multi-layer fracturing and flowing back without pulling string technology;
不动管柱多层压裂及排液一体化工艺技术研究与应用
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