| 单词 | concentric ring structures |
| 释义 | concentric ring structures [kǝn`sen·trik `riŋ ´strǝk·chǝrz] ASTRONOMY A formation on the moon's surface consisting of two craters, one inside the other, with approximately the same center. |
| 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。