英语词汇“back focal length”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	back focal length
释义	DictionarySeefocal length back focal length back focal length [′bak ¦fō·kəl ‚leŋkth] (optics) The distance from the rear surface of a lens to its focal plane. See BFL See BFL
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