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农作物 145 Physics 58 天文学 43
天文学::天体物理学 29 天文学::天体物理学::高能天体物理学 29 农学(农艺学) 26
核科学技术 23 农业基础科学 18 chemistry 15
光电子学 15 园艺 15 植物保护 15
Chemistry 12 经济学 12 Astronomy & Astrophysics 11
植物学 11 physics 10 半导体物理 10
Chemistry, Physical 9 Physics, Multidisciplinary 5 Science & Technology - Other Topics 5
engineering; materials science; physics 5 半导体材料 5 地理学::自然地理学 5
林业 5 环境污染及其防治 5 管理学 5
Environmental Sciences & Ecology 4 Materials Science 4 Spectroscopy 4
cell biology 4 chemistry; materials science; metallurgy & metallurgical engineering 4 半导体化学 4
天文学::天文学其他学科 4 教育学 4 昆虫学 4
畜牧、动物医学、狩猎、蚕、蜂 4 遗传学 4 Chemistry, Applied 3
Chemistry, Multidisciplinary 3 Chemistry; Physics 3 Engineering, Chemical 3
Geology 3 chemistry; materials science; physics 3 computer science 3
plant sciences 3 化学 3 法学 3
环境科学 3 Biochemistry & Molecular Biology 2 Ecology 2
Fisheries 2 Geography, Physical 2 Marine & Freshwater Biology 2
Metallurgy & Metallurgical Engineering 2 Meteorology & Atmospheric Sciences 2 Microbiology 2
Pharmacology & Pharmacy 2 Physical Geography 2 Plant Sciences 2
genetics & heredity 2 research & experimental medicine 2 science & technology - other topics; materials science; physics 2
分子生物学 2 历史学 2 固体地球物理学 2
天文学::恒星与银河系 2 民族学 2 物理学 2
环境地质学 2 生物化学 2 空间物理 2
考古学 2 .Fission and Fusion Reactions; Radiation Measurements 1 421 Strength of Building Materials; Mechanical Properties;813.2 Coating Materials;931.2 Physical Properties of Gases, Liquids and Solids 1
701.1 electricity: basic concepts and phenomena;712.1 semiconducting materials;714.2 semiconductor devices and integrated circuits 1 701.1 electricity: basic concepts and phenomena;714.2 semiconductor devices and integrated circuits 1 712.1 Semiconducting Materials;714.2 Semiconductor Devices and Integrated Circuits;741.1 Light/Optics;931.3 Atomic and Molecular Physics 1
712.1 Semiconducting Materials;741.1 Light/Optics;802.3 Chemical Operations;804.2 Inorganic Compounds;931.3 Atomic and Molecular Physics;933.1.1 Crystal Lattice 1 712.1 Semiconducting Materials;741.1 Light/Optics;933.1.2 Crystal Growth 1 714.2 Semiconductor Devices and Integrated Circuits;723.5 Computer Applications;802.2 Chemical Reactions;921 Mathematics 1
714.2 semiconductor devices and integrated circuits;731.1 control systems 1 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory;721.2 Logic Elements;721.3 Computer Circuits;722.4 Digital Computers and Systems;921.1 Algebra 1 804.2 inorganic compounds;804 chemical products generally;715 electronic equipment, general purpose and industrial;932.1 high energy physics;704.1 electric components;703.1 electric networks;701.1 electricity: basic concepts and phenomena;704 electric components and equipment 1
813.1 Coating Techniques;804.2 Inorganic Compounds;804 Chemical Products Generally;741.3 Optical Devices and Systems;741.1 Light/Optics;931.3 Atomic and Molecular Physics;714.2 Semiconductor Devices and Integrated Circuits;546.3 Zinc and Alloys;539.3 Metal Plating;539 Metals Corrosion and Protection; Metal Plating;531 Metallurgy and Metallography;712.1 Semiconducting Materials 1 819.4 Fiber Products;817 Plastics and Other Polymers: Products and Applications;812 Ceramics, Refractories and Glass;741.3 Optical Devices and Systems;741.1.2 Fiber Optics;732.2 Control Instrumentation;731.1 Control Systems;703.1 Electric Networks;601.2 Machine Components 1 931.1 Mechanics;804 Chemical Products Generally;801 Chemistry;714.2 Semiconductor Devices and Integrated Circuits;712.1.2 Compound Semiconducting Materials;712.1.1 Single Element Semiconducting Materials;538.1 Metal Bonding 1
931.2 Physical Properties of Gases, Liquids and Solids;803 Chemical Agents and Basic Industrial Chemicals;802.1 Chemical Plants and Equipment;548.1 Nickel;547.1 Precious Metals;539.3.2 Electroless Plating;539.3.1 Electroplating 1 941.4 Optical Variables Measurements;804.1 Organic Compounds;804.2 Inorganic Compounds;812 Ceramics, Refractories and Glass;812.3 Glass;813.1 Coating Techniques;931.3 Atomic and Molecular Physics;931.4 Quantum Theory; Quantum Mechanics;933 Solid State Physics;933.1.1 Crystal Lattice;941.3 Optical Instruments;801.4 Physical Chemistry;461 Bioengineering and Biology;482.2 Minerals;531.2 Metallography;711 Electromagnetic Waves;801 Chemistry;712.1 Semiconducting Materials;714.2 Semiconductor Devices and Integrated Circuits;741.1 Light/Optics;741.3 Optical Devices and Systems;714.1 Electron Tubes 1 Agricultural Methods; Chemical Products Generally; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals; Ore Treatment; Metallurgy and Metallography; Soils and Soil Mechanics; Groundwater 1
Agriculture; Environmental Sciences & Ecology; Plant Sciences 1 Agronomy; Forestry; Meteorology & Atmospheric Sciences 1 Anthropology; Genetics & Heredity; Immunology 1
Astronomy & Astrophysics; Physics 1 Biochemical Research Methods 1 Biochemistry & Molecular Biology; Cell Biology 1
Biochemistry & Molecular Biology; Chemistry 1 Biochemistry & Molecular Biology; Oncology; Cell Biology; Genetics & Heredity 1 Biochemistry & Molecular Biology; Pharmacology & Pharmacy; Toxicology 1
Biochemistry & Molecular Biology; Toxicology; Immunology; Cardiovascular System & Cardiology 1

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