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农作物 86 天文学 65 Physics 51
天文学::天体物理学 45 天文学::天体物理学::高能天体物理学 42 核科学技术 31
植物保护 21 植物学 17 Environmental Sciences 16
农业基础科学 16 chemistry 15 physics 14
Agriculture 13 astronomy & astrophysics; physics 13 Materials Science, Multidisciplinary 10
Geochemistry & Geophysics 9 物理学 9 农学(农艺学) 8
半导体物理 8 Chemistry, Multidisciplinary 7 Environmental Sciences & Ecology 7
Metallurgy & Metallurgical Engineering 7 分子生物学 7 Chemistry 6
Chemistry, Physical 6 Geology 6 Plant Sciences 6
Water Resources 6 遗传学 6 Materials Science 5
Nanoscience & Nanotechnology 5 Physics, Applied 5 Science & Technology - Other Topics 5
半导体材料 5 天文学::天文学其他学科 5 天文学::恒星与银河系 5
Biochemistry & Molecular Biology 4 Biotechnology & Applied Microbiology 4 Engineering 4
Fisheries 4 plant sciences 4 环境污染及其防治 4
生理心理学/生物心理学 4 经济学 4 Civil 3
Engineering, Environmental 3 Environmental 3 Immunology 3
Pharmacology & Pharmacy 3 Soil Science 3 Spectroscopy 3
biochemistry & molecular biology 3 meteorology & atmospheric sciences 3 physical geography; geology 3
science & technology - other topics 3 大气科学(气象学) 3 天文学::天体物理学::实测天体物理学 3
微电子学 3 Abnormal Psychology 2 Astronomy & Astrophysics 2
Biochemistry & Molecular Biology; Biophysics 2 Chemistry; Physics 2 Computer Science, Theory & Methods 2
Ecology 2 Engineering, Civil 2 Geosciences, Multidisciplinary 2
Marine & Freshwater Biology 2 Pharmacology & Pharmacy; Endocrinology & Metabolism; Biochemistry & Molecular Biology 2 Physics, Atomic, Molecular & Chemical 2
Physics, Multidisciplinary 2 Veterinary Sciences 2 agriculture, multidisciplinary 2
agronomy 2 biochemistry & molecular biology; biophysics; cell biology 2 biochemistry & molecular biology; chemistry 2
genetics & heredity 2 multidisciplinary sciences 2 rheumatology 2
原子能技术 2 外国文学 2 物理化学与绿色催化 2
物理学::高能物理学 2 环境科学 2 畜牧、动物医学、狩猎、蚕、蜂 2
空间环境 2 管理学 2 701.1 Electricity: Basic Concepts and Phenomena;741.1 Light/Optics;741.3 Optical Devices and Systems;921.6 Numerical Methods 1
712.1 Semiconducting Materials;714.2 Semiconductor Devices and Integrated Circuits;717.2 Optical Communication Equipment;741.1 Light/Optics;741.3 Optical Devices and Systems;801 Chemistry 1 712.1 Semiconducting Materials;741.3 Optical Devices and Systems;801 Chemistry;802.2 Chemical Reactions 1 741.1 Light/Optics;741.3 Optical Devices and Systems 1
821.4 Agricultural Products;901 Engineering Profession;901.4 Impact of Technology on Society;821.3 Agricultural Methods;913.1 Production Engineering;922.2 Mathematical Statistics;971 Social Sciences;921.5 Optimization Techniques;817.1 Polymer Products;443.3 Precipitation;446.1 Water Supply Systems;454.3 Ecology and Ecosystems;443.1 Atmospheric Properties;461.9 Biology;801.4 Physical Chemistry;802.3 Chemical Operations;483.1 Soils and Soil Mechanics 1 Acoustics 1 Allergy 1
Automation & Control Systems 1 Biochemical Research Methods 1 Biochemistry & Molecular Biology; Chemistry 1
Biochemistry & Molecular Biology; Genetics & Heredity; Chemistry; Oncology 1 Biochemistry & Molecular Biology; Hematology 1 Biochemistry & Molecular Biology; Infectious Diseases; Dentistry, Oral Surgery & Medicine 1
Biochemistry & Molecular Biology; Pharmacology & Pharmacy 1

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