“spherometer”的英文意思_释义_用法

单词

spherometer

释义

spherometer|sfɛˈrɒmɪtə(r)|
Also sphærometer.
[ad. F. sphéromètre: see sphero- and -meter.]
An instrument for measuring the sphericality or curvature of bodies or surfaces.
1827–8Herschel in Encycl. Metrop. (1845) IV. 567 The ‘Spherometer’, a delicate species of calibre contrived by M. Biot.1830― Study Nat. Philos. 355 The elegant invention of the sphræometer,..substituting the sense of touch for that of sight in the measurement of minute objects.1876Catal. Sci. App. S. Kens. 29 Spherometer for measuring spherical curves, with true gun-metal plane.
Comb.1903Nature 12 March 442/2 The spherometer-calliper, which, we believe, was used with success in the testing of the instruments employed in the transit of Venus expeditions.

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