| 单词 | radial motion |
| 释义 | radial motion[ rey-dee-uhl moh-shuhn ] / ˈreɪ di əl ˈmoʊ ʃən / noun Astronomy.the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star. Also called ra·di·al ve·loc·i·ty [rey-dee-uhl vuh-los-i-tee] /ˈreɪ di əl vəˈlɒs ɪ ti/ . Compare redshift, tangential motion. Origin of radial motionFirst recorded in 1880–85 Words nearby radial motionradial extensor muscle of wrist, radial flexor muscle of wrist, radial growth phase, radial index artery, radial keratotomy, radial motion, radial nerve, radial paralysis, radial-ply, radial saw, radial symmetry Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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