In Surveying: a ‘sight’ or reading taken backwards, or towards the point of starting.
| 单词 | θ7442 | 
| 释义 | the world > the earth > earth sciences > geography > map-making > surveying > 			[noun]		 > an observation with a surveying instrument > taken backwards (1)		 backsight1847 In Surveying: a ‘sight’ or reading taken backwards, or towards the point of starting.  | 
	
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