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单词 oligochronometer
释义

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oligochronometer
oligochronometer n. Obsolete an instrument for measuring very small periods of time.
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the world > time > instruments for measuring time > [noun] > chronometer
longitude1665
longitude watch1670
chronometer1714
sea-watch1768
watch1778
box chronometer1789
oligochronometer1857
1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Oligochronometrum, term for an instrument invented by Del Negro for measuring the minute fractions of time: an oligochronometer.
1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. 604 Oligochronometer, an instrument for measuring the smallest fractions of time.—Applied to the measurement of the velocity of projectiles.
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更新时间:2024/12/28 23:04:53