| 单词 | hubbles-constant |
| 释义 | Hubble's constant in American Englishnoun Astronomy the ratio of the recessional velocity of galaxies to their distance from the sun, with current measurements of its value ranging from 50 to 100 km/sec per megaparsec Word origin [1950–55; after E. P. hubble]Definition of 'Hubble's constant' |
| 随便看 |
英语词典包含298861条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。