“Pan-African Period”的概念、定义、翻译、参考文献-科学参考

单词	Pan-African Period
释义	Pan-African Period Encyclopedia 理学泛非期释 Pan-African Period泛非期相当于新元古代晚期至早古生代早期（相当于距今6亿～5亿年或距今9.5亿～5亿年）的地质时期。
随便看	particle flux particle flux measurement particle group particle gun particle hole particle-hole particle-hole interaction particle-hole theory particle horizon particle identification particle identification technique particle image velocimetry particle image velocimetry，PIV particle in a box particle-in-cell method particle in cell simulation particle-in-cell simulation particle induced X-ray emission particle-induced X-ray emission fluorescence analysis particle induced X-ray emission, PIXE particle in spherically symmetric potential particle interaction particle lifetime particle line particle mass spectrometry

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。