the breaking place prediction of face end main roof flap top in the gob-side entry retaining
工作面端头悬顶在沿空巷道中破断位置的预测
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分层开采后退式超前掘进巷旁支护沿空留巷技术
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roof cracking reason analysis about gob-side entry retaining under initiative support
主动支护下沿空留巷顶板破碎原因分析
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research and application of bolt support technology for gob-side entry retaining
沿空留巷锚杆支护技术研究及应用
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development status and improved proposals on gob-side entry retaining support technology in china
我国沿空留巷支护技术发展现状及改进建议
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