“urban primacy”的概念、定义、翻译、参考文献-科学参考

单词	urban primacy
释义	urban primacy Encyclopedia 经济学城市规模释 urban primacy城市首位度一国或区域内首位(规模最大的)城市与其第二位(规模次大的)城市的人口数之比。反映一个国家或地区最大城市的重要程度。
随便看	cardioid catacaustic cardioid coordinate cardioid curve cardioid evolute cardioid inverse curve cardioid involute cardioid negative pedal curve cardioid pedal curve cardiolipin cardionatrin cardionatrine cardiopulmonary bypass and blood processing devices cardiopulmonary cerebral resuscitation cardiopulmonary exercise testing cardiopulmonary receptors cardiorenal syndrome，CRS cardiotonic agents cardiovascular center cardiovascular dysfunction in weightlessness cardiovascular endurance training cardiovascular health effects of atmospheric pollution cardiovascular imaging cardiovascular materials Cardiovascular Pharmacology cardiovascular polymer

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。