單字f-number的中文意思與發音


f-number

[ef]
    n.焦距比數







單字f-number的中英文例句與用法


fnumber|f值|擷取裝置的f值。
Fnumber| f-number| f-number of the capture device.
當調校至某一光圈值時,穿過鏡頭的光量是前一光圈值的一半。每個光圈值稱為一個“光圈檔”。
A series of f-numbers are so chosen so that the amount of light passed by the lens when set to one number is half that passed by the lens when set to the previous numbers.each f-number is known as a "f-stop".
開口的直徑,常以f數表示
"The diameter of such an opening often expressed as an f-number."
孔徑這種開口的直徑,常以f數表示
The diameter of such an opening often expressed as an f-number.
美加混凝土地面平整度與水平度的f數標準
The f-number standard for concrete floor developed by american concrete inst.and canadian standards asoc.

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