单词 | refractometer |
释义 | refractometer [´rē´frak`täm·ǝd·ǝr] ENGINEERING An instrument used to measure the index of refraction of a substance in any one of several ways, such as measurement of the refraction produced by a prism, measurement of the critical angle, observation of an interference pattern produced by passing light through the substance, and measurement of the substance's dielectric constant. |
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