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Use and improvement of mining underground breaker

WEI Xiao ling;HU Jin sheng (1.Hebei Institute of Architectural Science & Technology,Handan 056038,China; 2.Xingtai Mine of Xingtai Mining Group,Xingtai 054026,China)  
Point at the problems existing in the operation procedure of underground breakers,this paper presents some detailed measures about improving breakers
【CateGory Index】: TD451
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