“nine-class tax system”的概念、定义、翻译、参考文献-科学参考

单词	nine-class tax system
释义	nine-class tax system Encyclopedia 历史学社会经济释 nine-class tax system　九品混通中国魏晋南北朝时期按户等平衡户调征收额的原则性规定。
随便看	doorway state doorway wavepacket doorway window wavepacket representation doorway-window wavepacket representation Doo-yong Lee DOP DOPA dopamine dopamine D1 receptor dopamine D2 receptor dopamine receptor agonists dopaminergic neurons dopant dopant ions in gain fiber dopase doped cluster doped crystal doped molybdenum doped semiconductor doped tungsten dope dyed fiber dope-dyed polyester fiber doping doping analysis doping attitude

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。