单词	extragalactic
释义	extragalactic /ˌɛkstrəɡəˈlaktɪk / adjective Astronomy Situated, occurring, or originating outside the Milky Way galaxy: extragalactic radio sources... Hence the whole foundation of extragalactic astronomy and Big Bang theory is swept away’. It is definitely an extragalactic background. The number of these sources is consistent with the expected number of extragalactic sources in the background sky.
随便看	focal focalise focalization focalize focal length focally focal plane non-national non-native non-natural non-naturalism non-naturalist non-naturalistic non-naturalistically non-naturalness non-necessary non-necessity non-negative non-negotiable non-net non-Newtonian non nobis non-nocturnal non-normal non-normality

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