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单词 spherograph
释义

> as lemmas

spherograph
spherograph n.
Brit. /ˈsfɪərə(ʊ)ɡrɑːf/
,
/ˈsfɪərə(ʊ)ɡraf/
,
U.S. /ˈsfɪrəˌɡræf/
,
/ˈsfɛrəˌɡræf/
Nautical a device serving to facilitate the calculation of spherical problems.
ΘΚΠ
society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > device for spherical calculations
spherograph1858
sphereometer1862
1858 Mercantile Marine Mag. 5 231 The Spherograph, invented by Mr. Saxby, will shew..the true bearing of the Sun at any time throughout the day.
1867 W. T. Brande & G. W. Cox Dict. Sci., Lit. & Art (new ed.) III. 532/1 Spherograph, an instrument invented for the practical application of spherics to navigation. By its aid any possible spherical triangle can be constructed without dividers or scales.
extracted from sphero-comb. form
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更新时间:2024/11/13 9:45:24