| 单词 | galactic concentration | 
| 释义 | Definition of galactic concentration in English:galactic concentrationnoun 
 OriginEarly 20th century; earliest use found in Arthur Eddington (1882–1944), theoretical physicist and astrophysicist. Definition of galactic concentration in US English:galactic concentrationnoun 
 OriginEarly 20th century; earliest use found in Arthur Eddington (1882–1944), theoretical physicist and astrophysicist.  | 
	
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