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ItemNumberofEnter-EnterprisespriseswithR&D(unit)ActivitiesTotal36861140MiningandQuarrying2411MiningandWashingofCoal43ExtractionofPetroleumandNaturalGas22MiningandProcessingofFerrousMetalOres71MiningandProcessingofNon-FerrousMetalOresMiningandProcessingofNonmetalOres5MiningSupportServiceActivities65MiningofOtherOresManufacturing3...
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