| 释义 |
stop number
Thesaurus| Noun | 1. | stop number - the ratio of the focal length to the diameter of a (camera) lens systemf number, focal ratio, speedratio - the relative magnitudes of two quantities (usually expressed as a quotient) |
stop number
stop number[′stäp ‚nəm·bər] (optics) f number stop number
Related to stop number: stop offSynonyms for stop numbernoun the ratio of the focal length to the diameter of a (camera) lens systemSynonymsRelated Words |