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单词 sphereometer
释义

sphereometern.

Etymology: < sphere n. + -ometer comb. form.Previous versions of the OED give the stress as: sphereˈometer.
rare.
1. Nautical. (See quots.)
ΘΚΠ
society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > device for spherical calculations
spherograph1858
sphereometer1862
1862 Catal. Internat. Exhib., Brit. II. No. 2775 A ‘sphereometer’, for facilitating the practice of great circle sailing.
1863 A. Young Naut. Dict. (ed. 2) 361 Sphereometer, a contrivance ‘for facilitating great circle sailing by obviating abstruse calculations’.
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2. = spherometer n. (Knight, 1884).
This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2019).
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n.1862
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