“four tonal categories of the old Chinese”的概念、定义、翻译、参考文献-科学参考

单词	four tonal categories of the old Chinese
释义	four tonal categories of the old Chinese Encyclopedia 文学古四声释 four tonal categories of the old Chinese古四声先秦两汉时期汉语声调的总称。
随便看	human enterovirus human-environment system human ergonomics human error human essence human exceptionalism paradigm human excreta human experiment human eye human face pattern Human factor human factor analysis human factors usability testing human fibrinogen content determination human flapping wing flight human genetics Human Genome Project human genome project human genome project, HGP human geographical environment human geographic photography human geography human granulocytic anaplasmosis，HGA human guide human habitat study

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。