Congresses 1,313 研究 278 英语 231 高等学校 161 Data processing 64 作品集 60 高等教育 55 more ... Materials 53 Design and construction 51 企业管理 49 流行歌曲 44 Testing 39 基本知识 39 Automation 38 日本 38 History 36 Mathematical models 36 Integrated circuits 35 Automatic control 34 阅读教学 34 Environmental aspects 33 congresses 33 听说教学 33 概况 32 Semiconductors 31 Electronic data processing 30 Forecasting 30 Сборники 30 Twenty-first century 27 Management 26 经济发展 26 Research 25 Telecommunication 25 Lasers 24 文集 24 Electronic digital computers 23 Image processing 23 Pollution 23 Fisheries 22 世界史 22 Artificial intelligence 21 Computer networks 21 Computers 21 Equipment and supplies 21 Piano music 21 歴史 21 科学技術 21 経済 21 Foreign relations 20 Geology 20 Heat 20 Optical instruments 20 Power resources 20 Remote sensing 20 Technological innovations 20 写作 20 口语 20 研究报告 20 Biomedical engineering 19 Industrial applications 19 Metals 19 Symphonies 19 建筑设计 19 教育改革 19 Electronics 18 Forecasts 18 Politics and government 18 Transmission 18 视听教学 18 Sustainable development 17 Systems engineering 17 自然科学 17 Fishery management 16 Measurement 16 Pressure vessels 16 Process control 16 Safety measures 16 Signal processing 16 中学 16 地方志 16 程序设计 16 Economic policy 15 Electronic apparatus and appliances 15 Engineering 15 Fracture mechanics 15 Law and legislation 15 Neural networks (Computer science) 15 Parallel processing (Electronic computers) 15 Steel 15 Technology 15 Very large scale integration 15 政治 15 普及读物 15 纪实文学 15 Distributed processing 14 历史 14 家庭教育 14 文化 14 环境保护 14 科学技术 14 less ...