Synset:diopter
Hypernyms:unit unit of measurement
Inherited Hypernyms:diopterunit of measurementdefinite quantitymeasureabstractionentity
| 单词 | dioptre |
| 释义 | Dioptre nnoun.quantitya unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists Synset:diopter Hypernyms:unit unit of measurement Inherited Hypernyms:diopterunit of measurementdefinite quantitymeasureabstractionentity |
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