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    Introduction of some national invention patents of China Geological Survey (2020—2021)[J]. GEOLOGY IN CHINA, 2021, 48(2): 676-676. DOI: 10.12029/gczgdz-48-2-676
    Citation: Introduction of some national invention patents of China Geological Survey (2020—2021)[J]. GEOLOGY IN CHINA, 2021, 48(2): 676-676. DOI: 10.12029/gczgdz-48-2-676
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    Introduction of some national invention patents of China Geological Survey (2020—2021)

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