| 单词 | magnetic needle |
| 释义 | magnetic needle (once / 17828 pages) n WORD FAMILY magnetic needle: magnetic needles USAGE EXAMPLESFinding the magnetoreceptors responsible for triggering these neurons has been like looking for a magnetic needle in a haystack. Science Magazine(Jun 23, 2016) Without inclination or dipping; Ð said the magnetic needle balances itself horizontally, having no dip. Webster, Noah, Webster's Unabridged Dictionary(2012) The magnetic needle then makes known the presence of a current of electricity which has no appreciable effect upon any of man's five senses. Widtsoe, John Andreas, Joseph Smith as Scientist—A Contrib...(2012) n a slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth's magnetic pole Hyper magnet (physics) a device that attracts iron and produces a magnetic field |
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