“旧石器时代”的概念、定义、翻译、参考文献-科学参考

单词	旧石器时代
释义	旧石器时代 Encyclopedia 理学第四纪古生态释 palaeolithic; palaeolithic age; old stone age旧石器时代从人类能制造并使用工具开始到距今约1万年前。在地质时代上涵盖上新世晚期（距今约330万年前以后）和整个更新世。
随便看	rate of earthquake occurrence rate of entropy production rate of escape rate of exchange rate of flow rate of formation rate of gain rate of generation of information rate of grassland turnover rate of growth rate of incidence rate of increase rate of induced abortion rate of interest rate of mass transfer rate of mixing Rate of Natural Increase rate of new stock rate of obsolescence rate of occurrence rate of pay rate of piglet involved rate of planned birth rate of production analysis rate of profit

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。