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environmental sciences & ecology 3 Engineering; Geology; Water Resources 2 地球科学::地理学 2
Agriculture 1 Ecology 1 Environmental Sciences & Ecology 1
Geology; Water Resources 1 P422 1 P641.8 1
S812.1 1 X21 1 agriculture; water resources 1
engineering; geology; remote sensing 1 environmental sciences & ecology; geology; water resources 1 environmental sciences & ecology; remote sensing; water resources 1
geology; remote sensing 1 geology; water resources 1 science & technology - other topics; environmental sciences & ecology 1
thermodynamics;information retrieval and use; mathematics 1 地理学::自然地理学 1

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