单词 | Friedmann universe |
释义 | Friedmann universe [`frēd·mǝn `yü·nǝ´vǝrs] ASTRONOMY A nonstatic, homogeneous, isotropic model of the universe that displays expansion or contraction and has nonzero matter density. |
随便看 |
|
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。