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astronomy & astrophysics; physics 92 天文学 92 Physics 62
天文学::天体物理学 59 天文学::天体物理学::高能天体物理学 56 physics 48
植物保护 35 核科学技术 34 农作物 33
天文学::星系与宇宙学 22 plant sciences 14 Astronomy & Astrophysics 13
Chemistry 12 农业基础科学 12 农学(农艺学) 11
地理学::自然地理学 10 Biochemistry & Molecular Biology 8 Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy 8
agronomy 8 考古学 8 Astronomy & Astrophysics; Physics 7
半导体物理 7 昆虫学 7 Cell Biology 6
Genetics & Heredity 6 Plant Sciences 6 Science & Technology - Other Topics 6
天文学::恒星与银河系 6 Environmental Sciences & Ecology 5 Materials Science, Multidisciplinary 5
Metallurgy & Metallurgical Engineering 5 天文学::天文学其他学科 5 物理学 5
Biochemistry & Molecular Biology; Plant Sciences 4 Chemistry; Physics 4 Electrochemistry 4
Multidisciplinary Sciences 4 genetics & heredity 4 horticulture 4
science & technology - other topics 4 半导体材料 4 天文学::射电天文学 4
畜牧、动物医学、狩猎、蚕、蜂 4 Biotechnology & Applied Microbiology 3 Chemistry; Science & Technology - Other Topics; Materials Science; Physics 3
Ecology 3 Materials Science 3 Neurosciences & Neurology 3
Oncology 3 Pharmacology & Pharmacy 3 Spectroscopy 3
Toxicology 3 chemistry; materials science; metallurgy & metallurgical engineering 3 chemistry; science & technology - other topics; materials science; physics 3
materials science 3 分析化学与药物化学 3 天文学::天体物理学::实测天体物理学 3
天文学::恒星与银河系::恒星形成与演化 3 植物学 3 物理化学 3
经济学 3 能源应用技术::仿生能源系统 3 Abnormal psychology 2
Chemistry, Multidisciplinary 2 Engineering; Science & Technology - Other Topics; Optics; Physics 2 Environmental Sciences 2
Environmental Sciences; Toxicology 2 Forestry 2 Gastroenterology & Hepatology 2
Marine & Freshwater Biology 2 Microbiology 2 Mycology 2
Nanoscience & Nanotechnology 2 Science & Technology - Other Topics; Materials Science; Physics 2 agriculture; forestry; meteorology & atmospheric sciences 2
biochemistry & molecular biology; plant sciences 2 biotechnology & applied microbiology 2 cell biology 2
computer science; mathematical & computational biology 2 entomology 2 general & internal medicine 2
geology 2 meteorology & atmospheric sciences 2 multidisciplinary sciences 2
neurosciences & neurology; psychiatry 2 optics 2 water resources 2
分析化学与药物化学::植物化学生态研究 2 地球物理学 2 机械工程 2
机械工程::仪器仪表技术 2 物理学::高能物理学 2 空间环境 2
轻工业、手工业、生活服务业 2 .Organic Polymers; Processing of Plastics and Other Polymers; Mathematical Statistics; Mechanics;Solid State Physics;Mechanical and Miscellaneous Measuring Instruments;Materials Science; Physical Chemistry; Concrete Reinforcements;Metals, Plastics, Wood and Other Structural Materials; Soils and Soil Mechanics;Mines and Mining, Nonmetallic; Metallography; Photography;Imaging Techniques 1 531 Metallurgy and Metallography - 537 Heat Treatment - 539 Metals Corrosion and Protection; Metal Plating - 545 Iron and Steel 1
531.2 Metallography;547.2 Rare Earth Metals;549.2 Alkaline Earth Metals;701.2 Magnetism: Basic Concepts and Phenomena;804.2 Inorganic Compounds;933.1 Crystalline Solids 1 711 Electromagnetic Waves;714.2 Semiconductor Devices and Integrated Circuits;932.1 High Energy Physics 1 933.1 Crystalline Solids;731.3 Specific Variables Control;741.1 Light/Optics;741.3 Optical Devices and Systems;801 Chemistry;802.2 Chemical Reactions;804.2 Inorganic Compounds;813.2 Coating Materials;932.1 High Energy Physics;712.1 Semiconducting Materials;408 Structural Design;482 Mineralogy;539 Metals Corrosion and Protection; Metal Plating;711.1 Electromagnetic Waves in Different Media;622.2 Radiation Effects;701.1 Electricity: Basic Concepts and Phenomena;711 Electromagnetic Waves;657.1 Solar Energy and Phenomena 1
Agriculture; Environmental Sciences & Ecology; Plant Sciences 1

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