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roof strata collapse of working face
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roof strata collapse of working face
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工学
矿井地压灾害
释
roof strata collapse of working face
采场冒顶
采场或巷道等地下空间上部岩体或矿体与原始岩层或矿层脱离,并在重力作用下垮塌、塌落、陷落的过程或现象。简称冒顶。是地下矿山常发、多发灾害之一。
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complex catalytic materials
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complex cobordism group
complex cobordism ring
complex cobordism theory
complex codimension
complex coefficient
complex coherence factor
complex color fastness to light-perspiration
complex compliance
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complex conjugate
complex conjugate bundle
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