| 单词 | Greenwich mean noon |
| 释义 | Greenwich mean noon [`gren·ich `mēn ¦nün] ASTRONOMY Local mean noon at the Greenwich meridian, twelve o'clock Greenwich mean time, or the instant the mean sun is over the upper branch of the Greenwich meridian. |
| 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。