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词汇
f-number
释义
f-number
n.
(名词
noun
)
【光•摄】
F 值,光圈值孔径焦距比(透镜的光圈指数,即焦距与入射光孔直径之比)
f/8[f 8, f: 8] F值[光圈]为8.
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更新时间:2025/7/22 23:27:06