“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	plaque plaque couplet in landscape garden plaque forming cell plaque imaging agent plaque mutants plaque rupture Plaskett crater Plaskett's star plasma plasma ablation plasma accelerator plasma antenna plasma arc cutting plasma arc processing plasma arc remelting plasma arc welding plasma-assisted catalytic combustion plasma assisted deposition plasma-assisted ignition plasma astrophysics plasma atomic fluorescence spectrometry plasma auxiliary heating plasma beat wave accelerator plasma beta ratio plasmablast

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。