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Antarctica
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Arctic
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GA1-1776
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GC1-1581
1
Mathematical geography. Cartography
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Oceanography
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china′s policy stance
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gnss
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leo
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microorganism
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natural medicine
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orbit determination
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spatial datum
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strategic significance
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the polar and deep sea′s governance
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the polar and deep sea′s rights and interests
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time datum
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北极
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南极
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天然药物
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微生物
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