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2026-02-04

“astrometer”的英英意思

单词	astrometer
释义	astrometer\|əˈstrɒmɪtə(r)\| [f. astro- + Gr. µέτρον measure.] An instrument for measuring the apparent relative magnitude of the stars. 1830in Edin. Encycl. II. 582. 1867–77 Chambers Astron. 748 A useful astrometer for determining star-magnitudes.