英语词汇“f-number”的读音、意思、造句、用法及中英文翻译-迷途网

词汇	f-number
释义	f-number noun /ˈef nʌmbə(r)/ /ˈef nʌmbər/ a number that shows the relationship between the focal length of a camera lens and its diameterf值：表示相机镜头焦距与其直径之间关系的数字词源early 20th cent.: from f (denoting the focal length) and number.
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