“Permian”的概念、定义、翻译、参考文献-科学参考

单词	Permian
释义	Permian [`pǝr·mē·ǝn] ^GEOLOGY The last period of geologic time in the Paleozoic era, from 280 to 225 million years ago.
随便看	Virgo Supercluster Virgo X-1 virial coefficients virial of a system virial theorem virial-theorem mass viridans streptococci virilism virion Virmel engine viroid virology virotoxin virtual address virtual cathode virtual decimal point virtual direct-access storage virtual displacement virtual entropy virtual environment virtual gravity virtual height virtual image virtual leak virtual level

科学参考收录了103327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。