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天井
连接上下两个中段,提升或下放设备、工具和材料,或者用于通风、行人及探矿等目的的简易井筒。是在非煤矿山的矿块内,沿矿床掘进直立或倾角较大的简易井筒。位于中段以上的倾角较大的简易井筒又称上山,位于中段以下的倾角较大的简易井筒又称下山。
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knowledge innovation engineering
knowledge innovation mechanism
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knowledge innovation system
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knowledge intensive business services
knowledge intensive industry
knowledge interchange format
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knowledge link
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knowledge management activities
knowledge management behavior
knowledge management capability
knowledge management culture
Knowledge Management Department of National Research Council of Canada
knowledge management evaluation
knowledge management implementation
knowledge management incentive
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