| 单词 | natural magnet |
| 释义 | > as lemmasnatural magnet natural magnet n. a piece of lodestone (magnetite) or other object that is naturally magnetic. ΚΠ 1759 Philos. Trans. 1758 (Royal Soc.) 50 775 Though the same poles repel each other, yet, like natural magnets, in contact..they attract each other. 1794 G. Adams Lect. Nat. & Exper. Philos. IV. l. 457 His poker and tongs were natural magnets. 1834 M. Faraday in London & Edinb. Philos. Mag. 5 349 Nobili's was, I believe, an ordinary magnet; others have used the natural magnet. 1935 C. J. Smith Intermediate Physics (ed. 2) v. xxxix. 652 A piece of lodestone, Fe3O4, is a natural magnet. < as lemmas |
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