YAN Liwei. Research on coal quantity and quality control mechanism based on blockchai[J]. Journal of Mine Automation, 2021, 47(S2): 49-51.
Citation: YAN Liwei. Research on coal quantity and quality control mechanism based on blockchai[J]. Journal of Mine Automation, 2021, 47(S2): 49-51.
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Research on coal quantity and quality control mechanism based on blockchai

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