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单词
f-number
释义
f-number
f-number
[ˈefˌnʌmbə]
n.
1.
■
【摄】光圈数
effective f-number
【摄】有效光圈数
overall f-number
总光圈大小, 总孔径焦距比
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更新时间:2026/5/17 10:51:24