“Free and Imperial Cities”的概念、定义、翻译、参考文献-科学参考

单词	Free and Imperial Cities
释义	Free and Imperial Cities Encyclopedia 历史学德意志历史释 Free and Imperial Cities帝国自由市神圣罗马帝国时期直属于皇帝（亦即德意志国王）的城市和市镇，根源于皇帝领地。
随便看	Regulations on Management of River Course of the People’s Republic of China Regulations on Management of Urban Underground Space for Tianjin regulations on maritime trade regulations on medical service for impoverished patients Regulations on Medical Waste Management Regulations on Movable Type Printing Adopted at the Hall of Martial Valor regulations on national economic census Regulations on National General Survey of Pollution Sources Regulations on Newspapers and Periodicals regulations on payment of wages Regulations on Personnel Management of China's Public Institutions Regulations on Practicing Economy and Opposing Waste in Party and Government Organs Regulations on Preventing Collisions at Operation of Fishing Vessels Regulations on Prevention and Control of Forest Diseases and Pests Regulations on Prevention and Control of Livestock and Poultry Scale Aquaculture Pollution Regulations on Protection of Aquatic Resources Reproduction Regulations on Protection of Meteorological Facilities and Meteorological Observation Environment Regulations on Public Cultural and Sports Facilities Regulations on public cultural and sports facilities Regulations on Publishing Market Regulations on Railway Safety Management regulations on regulators Regulations on Restoring Farmland to Forest regulations on safety of genetically modified organisms in America regulations on safety of genetically modified organisms in Argentina

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。