| 单词 | unmagnetic | 
| 释义 | unmagneticadj.  Not magnetic; = non-magnetic adj. ΘΚΠ the world > matter > physics > electromagnetic radiation > magnetism > 			[adjective]		 > having characteristics of > not unmagnetical1748 unmagnetic1784 1784    R. Kirwan Elements Mineral. 280  				There is found, principally in France, a black, heavy, unmagnetic sand. 1844    H. M. Noad Lect. Electr. 		(ed. 2)	 425  				An unmagnetic needle, placed within a close helix, formed by the wire of the circuit. 1929    Flying Mag. 29 Apr. 34/1  				A dummy compass card entirely unmagnetic. 2005    Sci. News 29 Oct. 280/2  				Nanoparticles with magnetic properties..usher the protons to their original spins much faster than unmagnetic particles do. This entry has been updated (OED Third Edition, December 2014; most recently modified version published online March 2022). <  | 
	
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