“帝国自由市”的概念、定义、翻译、参考文献-科学参考

单词	帝国自由市
释义	帝国自由市 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	open-loop control systems open loop experiment open loop guidance open-loop pressurization open loop servo system open-loop system open-loop test of flight control system open magnet unit open management department of museum open manifold open mapping open mapping theorem open market operations open market operation system open metallocene openmetallocene open mixed-refrigerant cycle liquefaction process open mobile alliance digital rights management open model open motor skill OpenMP open multi-processing open n-ball open n-disk open neighborhood

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。