“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	polymer liquid polymer liquid crystal polymer lithium ion battery polymer lithium-ion battery polymer material polymer material for space suit polymer material glassy state polymer materials for controlled release polymer materials for renal dialysis polymer materials for shock absorption polymer materials modification polymer materials used for orthopedics fixation polymer matrix composites polymer mediated method polymer melt polymer membrane polymer MEMS polymer micro electro mechanical system polymer micro-electromechanical system device polymer modified bitumen polymer-modified cement concrete polymer-modified cement mortar polymer modified electrode polymer modified protein drugs polymer morphology

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。