“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	prime coat prime contractor primed lymphocyte prime element prime factor prime fictitious meridian prime field prime focus prime grid meridian prime ideal prime inverse meridian prime meridian prime mover prime navaids facilities prime number prime number theorem prime oblique meridian prime polynomial primer primer cup primer-detonator prime register prime ring primer leak primer mixture

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。