“old stone age”的概念、定义、翻译、参考文献-科学参考

单词	old stone age
释义	old stone age 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	definition of meters definition of relevant market definition of situation definition phase definition with antonym (s) definition with sentence definition with synonym(s) definition with synonym (s) or antonym (s) definitive host definitive method definitive orbit definitive time definitive tissue definitive weight definitizable operator definization method deflagration deflagration to detonation transition deflagration wave deflagrationwave deflation deflationary theory of truth deflation mapping deflation method deflation technique

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。