煤矿机电设备选型设计.doc
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摘要
近年来，煤炭行业存在的矿井规模小、安全水平低、资源浪费严重等问题，对促进矿井生产效率的提高和安全作业，无疑具有极其重大的影响。
ABSTRACT
In recent years, the existence of the mine the coal industry for small, safe low level of serious waste of resources and other issues, how to improve mine mechanization as the key to solving this problem. To achieve high eff
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