单词 | active galactic nucleus |
释义 | active galactic nucleusAstronomy noun A compact region at the centre of a galaxy which emits an abnormally large amount of radiation in one or more parts of the electromagnetic spectrum.
Origin1960s; earliest use found in Astrophysical Journal. |
随便看 |
|
英语词典包含243303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。