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extragalactic nebula单词什么意思_extragalactic nebula单词解释 extragalactic nebula的反义词extragalactic nebula的例句

extragalactic nebula

extragalactic nebula 基本解释

七彩网·英语单词

河外星云；河外星系；

extragalactic nebula 网络解释

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6. extragalactic nebula什么意思

1. 河外星云：extra high vacuum 特高真空 | extragalactic nebula 河外星云 | extragalactic radio astronomy 河外射电天文学

2. 河外星云(星系)：河外背景光 extragalactic background light | 河外星云(星系) extragalactic nebula | 河外新星 extragalactic nova

3. 天河外星云：偏心望远镜 extracentral telescope | 天河外星云 extragalactic nebula | 外推法 extrapolation

extragalactic nebula 英英释义

noun

1. (astronomy) a collection of star systems
any of the billions of systems each having many stars and nebulae and dust

e.g. `extragalactic nebula' is a former name for `galaxy'

Synonym: galaxy

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extragalactic nebula单词什么意思_extragalactic nebula单词解释 extragalactic nebula的反义词extragalactic nebula的例句