“palaeolithic”的概念、定义、翻译、参考文献-科学参考

单词	palaeolithic
释义	palaeolithic 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	straightening theorem straightest path straight eyepiece straight fan straight fertilizer straight filament straightforward straightforward calculation straight helicoid straight knife cutting machine straight line straight-line arithmetic program straight line composition straight-line direction straight-line linkage straight-line method straight line motion straight-line representation straight-line segment straightness straightness artefact straightness measurement straight photography straight pile position survey straight polyomino

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。