(a) (in full prime vertical circle) a great circle of the celestial sphere which passes through the east and west points of the horizon and through…
| 单词 | θ52 | 
| 释义 | the world > the universe > celestial sphere > circle of celestial sphere > 			[noun]		 > great circle > azimuth circle > prime vertical (1)		 prime vertical1669 (a) (in full prime vertical circle) a great circle of the celestial sphere which passes through the east and west points of the horizon and through…  | 
	
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