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Astronomy & Astrophysics 2 Environmental Sciences 2 Marine & Freshwater Biology 2
Science & Technology - Other Topics 2 环境地球化学 2 Energy & Fuels 1
Energy & Fuels; Engineering, Chemical 1 Engineering, Chemical 1 Engineering, Environmental 1
Environmental Sciences & Ecology 1 Geology 1 Inorganic Compounds; Organic Compounds;Chemical Products Generally; Engineering Research;Chemistry; Geochemistry; Geology; Rare Earth Metals 1
Oceanography 1 S157.1 1 agricultural engineering 1
地球化学 1 地球科学::海洋科学::物理海洋学 1 地理学::自然地理学 1
地质学 1 天文学 1 物理化学 1
环境地质学 1 环境科学技术 1

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