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天文学 99 Environmental Sciences 55 天文学::恒星与银河系 30
Environmental Sciences & Ecology 28 Ecology 26 材料科学与物理化学 25
天文学::天体物理学 23 天文学::天体物理学::高能天体物理学 22 天文学::恒星与银河系::恒星形成与演化 21
Materials Science, Multidisciplinary 18 Chemistry, Physical 16 Marine & Freshwater Biology 15
Meteorology & Atmospheric Sciences 15 Plant Sciences 15 天文学::星系与宇宙学 15
Energy & Fuels 14 Engineering 13 Geosciences, Multidisciplinary 13
Chemistry 12 Oceanography 12 Water Resources 12
环境地球化学 12 半导体物理 11 地理学::自然地理学 11
Electrochemistry 10 Engineering, Environmental 10 Physics 10
半导体材料 10 Biodiversity Conservation 9 Biochemistry & Molecular Biology 8
Biotechnology & Applied Microbiology 8 Soil Science 8 Geology 7
Pharmacology & Pharmacy 7 星系和宇宙学 7 环境科学 7
Agriculture 6 Agronomy 6 Forestry 6
Multidisciplinary Sciences 6 天文学::太阳与太阳系 6 天文学::太阳与太阳系::太阳物理学 6
物理化学与绿色催化 6 环境地质学 6 自然地理学 6
Chemistry, Multidisciplinary 5 Environment 5 Environmental 5
Food Science & Technology 5 Genetics & Heredity 5 electrochemistry 5
energy & fuels 5 水文地质学 5 油气地质 5
Biology 4 Evolutionary Biology 4 Geochemistry & Geophysics 4
Materials Science 4 Microbiology 4 Multidisciplinary 4
Mycology 4 Nanoscience & Nanotechnology 4 chemistry 4
天文学::射电天文学 4 物理化学 4 物理学 4
生态学 4 Astronomy & Astrophysics 3 Civil 3
Engineering, Chemical 3 Metallurgy & Metallurgical Engineering 3 Physics, Applied 3
Science & Technology - Other Topics 3 光学工程 3 恒星和恒星物理 3
海洋地质学 3 火成岩岩石学 3 矿床地质 3
空间物理 3 致密天体、高能和基础物理 3 Agriculture, Multidisciplinary 2
Chemistry, Organic 2 Civil; Environmental Sciences 2 Ecology; Environmental Sciences; Marine & Freshwater Biology; Water Resources 2
Engineering; Environmental Sciences & Ecology 2 Environment/ecology 2 Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences 2
Environmental Sciences; Geosciences, Multidisciplinary; Water Resources 2 Environmental Studies 2 Environmental; Engineering 2
Environmental; Environmental Sciences 2 Fisheries 2 Geography, Physical 2
Geosciences, Multidisciplinary; Soil Science 2 Green & Sustainable Science & Technology 2 Limnology 2
Mining & Mineral Processing 2 Optics 2 光电子学 2
农作物 2

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