“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	operational game operational label operational maintenance operational standby program operational unit operational weather limits operation analysis operation analysis chart operation breakdown operation code operation cycle operation decoder operation number operation part operation process chart operation register operations research operations sequence operation time operative ankylosis operator operator algebra operator hierarchy operator interrupt operator process chart

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。