英语词汇lens aperture number怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	lens aperture number
释义	lens aperture number 简明释义透镜孔径数网络释义 1 ?透镜孔径数 ... effective lens aperture 透镜有效孔径 lens aperture number 透镜孔径数 lens aperture indicator 镜头光圈指数器 ... 双语例句 1 The aperture size (area of the aperture) of a lens could be calculated from focal length and the correspondent f-number. 光圈孔的大小，可从镜头的焦距与焦距比数中计算出来。
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