| 单词 | polarity event |
| 释义 | polarity event [pǝ`lar·ǝd·ē i´vent] GEOPHYSICS A period of no more than about 100,000 years when the earth's magnetic polarity was opposite to the predominant polarity of that polarity epoch. |
| 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。