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单词 refractometer
释义 refracˈtometer
[f. as refract v. + -ometer.]
An instrument for measuring the indices of refraction of various substances.
1876Catal. Sci. App. S. Kens. 133. 1883 Nature 15 Mar. 473/1 On a refractometer for measuring the indices of refraction and the dispersion of solid bodies.
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