| 单词 | coplanarity | 
| 释义 | > as lemmascoplanarity   coplanarity n. /-ˈærɪtɪ/ the property of being coplanar. ΘΚΠ the world > relative properties > number > geometry > surface > 			[noun]		 > plane > being planar or coplanar planarity1850 coplanarity1901 1901    J. W. Gibbs  & E. B. Wilson Vector Anal. ii. 68  				The necessary and sufficient condition for the coplanarity of three vectors A,B,C none of which vanishes is A. (B × C) = O. 1979    Nature 26 July 301/1  				The regular satellite systems of Jupiter, Saturn and Uranus are remarkable for the near coplanarity and circularity of their orbits. < as lemmas  | 
	
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