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2025?????2????????8??????,?2???????????,????????????????????????????
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??????????????(??????)?2010???????(DEM),??????????5??????DEM??????,????????????????????,???DEM????0.1?????(??????DEM??????????????)?“????,?????,??????????????????????DEM?????????????????,????”?????????????,???????????????0.5???????
?,?????DEM???DEM??????????????????????,?,???????????58.7??????????????????,??22.4??
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