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The dynamic stress-fields and their distribution characteristics around boreholes in the directed crack blasting were measured with the dynamic photo-elastic laser holography apparatus and the uitradymamic measurement system. The directed crack mechanism and its mechanical model have been analysed and expounded. Through the 43 production experiments using slotted cartridges and the double triangle center cut-holes for directed crack blasting in underground rock drift, the resuits of which the rates of half-hole marks and efficiency of borehole,and the nonsmooth grades of the cut contours are 96%, 98% and 10cm respectively have been achieved. 相似文献
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近年来专家系统发展很快,为了开拓在煤炭工业中的应用,本文简单介绍综合决策及设备选型专家系统的用途、服务对象、主要功能。 相似文献
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专家系统的研究越来越受到人们的重视,它在综合机械化采煤中的应用刚刚起步,文章详细地论述了ZJXT系统的知识获取与知识库构造,推理机的特点及系统的功能。 相似文献
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专家系统的人工知识获取方法及其在ZCXT系统中的应用 总被引:1,自引:0,他引:1
详细地介绍了专家系统中人工知识获取的过程及其方法,并结合作者研制的《综合机械化采煤决策及设备选型专家系统》(简称ZCXT系统),讨论一种简单而有效的新方法──原型法。 相似文献
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