“史前人地关系”的概念、定义、翻译、参考文献-科学参考

单词	史前人地关系
释义	史前人地关系 Encyclopedia 理学史前人地关系释 prehistoric man-environment relationship史前人地关系从人类出现到进入文明社会（约公元前3000年）前人与自然环境的关系。
随便看	prime polynomial prime polynomial ideal prime poly-vector prime power prime power conjecture prime power group prime power order prime power symbol prime prefilter prime product prime pyramid primequad prime quadratic effect prime quadruplet prime quaternion prime quotient primer prime radical prime rational divisor primer dimer prime reciprocal constant prime representation prime residue class primer-extension preamplification PCR，PEP-PCR prime ring

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。