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Water-coal separation system and separation method
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Method for managing gas buried pipe on upper corner of fully mechanized coal mining face
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Coal mine underground sealing wall and preparation method thereof
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Goaf gas injection fire prevention and extinguishing system and fire prevention and extinguishing method
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CN110700879A
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Fixing device and fixing method for gob-side entry retaining roadside filling bag
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CN110641834A
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Colliery anchor rope conveyer
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The method that N,N-dimethylformamide excitation coal oil clinker prepares early strength concrete
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CN109809830A
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A kind of foam filling material and preparation method thereof containing modified magnesium powder
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CN109448488A
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Mine exogenous fire accident virtual emulation and emergency escape training method and system
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CN109343599A
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A kind of auxiliary shaft hoisting main motor electronic temperature controller
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CN109404042A
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A kind of mining automatic drainage device
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CN109577981A
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A kind of high seam pillar recovery method
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CN109918698A
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A kind of method, apparatus, equipment and the storage medium of determining bump transition energy
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CN109918697A
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A kind of prediction technique and device of Rock Burst intensity
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CN109555502A
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A kind of antireflective type approval test method of high methane coal road presplitting
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CN109933831A
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Press to a kind of determining intense impact the method, apparatus and storage medium of transition energy
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CN109918696A
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A kind of classification method and device of bump strength grade
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CN109598029A
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One kind being applied to high methane coal road CO2The design method of high pressure gas fracturing
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CN109630171A
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A method of along top tunnel along backplane relieving roadway floor lift control
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CN109441523A
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A kind of wooden permanent air throttle of external hanging type resistance to compression and its erection method
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