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单词 f-number
释义 DEFINITIVE EXAMPLES 权威例句〔aperture〕The diameter of such an opening, often expressed as an f-number.孔径:这种开口的直径,常以f数表示美国传统〔f-stop〕A camera lens aperture setting that corresponds to an f-number.f制光圈:以f表示的调节照相机镜头的孔径的装置美国传统〔f-system〕A method of indicating the relative aperture of a camera lens based on the f-number.f制:一种用f表达照相机镜头光圈大小的方法美国传统
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