英语词汇“focal ratio”的中英文释义、用法、翻译及短语词组-英汉翻译词典

单词	focal ratio
释义	focal ratio 英?[?f??k?l ?rei?i?u] 美?[?fok?l ?re?o] 释义焦比英英释义 Noun 1. the ratio of the focal length to the diameter of a (camera) lens system
随便看	mid-counties mid-county mid-course midcourse midcourse control midcourse correction midcourse guidance midcourse guidance of interplanetary flight midcourse navigation midcourse phase mid-courses midcourse trajectory midcoursetrajectory midcourse weight mid-court midcourt midcourter midcourters midcourt line mid-courts mid cradle midcrash midcry midcult midcultivator tire

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focal ratio