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单词 sphereometer
释义 sphereˈometer rare.
[f. sphere n.]
1. Naut. (See quots.)
1862Catal. Internat. Exhib., Brit. II. No. 2775, A ‘sphereometer’, for facilitating the practice of great circle sailing.1863A. Young Naut. Dict. 361 Sphereometer, a contrivance ‘for facilitating great circle sailing by obviating abstruse calculations’.
2. = spherometer (Knight, 1884).
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