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《Hebei Coal》 2000-04
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Analysis on factors for rapid drilling in mechanized cavingroadway supported by bolt

MA Guo - xue, ZHAO Bing - wen (Dongpang Coal Mine of Xingtai Mining Group, Xingtai 054000, China)  
According to the experiences with rapid drilling in mechanized caving coal roadway, the author analyzes and proposes the measures to improve drilling - speed.
【CateGory Index】: TD353
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