单词f-number的英汉翻译


f-number

[ef]
    n.焦距比数







单词f-number的英汉对照例句


fnumber|f值|捕获设备的f值。
Fnumber| f-number| f-number of the capture device.
当调校至某一光圈值时,穿过镜头的光量是前一光圈值的一半。每个光圈值称为一个“光圈档”。
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".
开口的直径,常以f数表示
"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
The diameter of such an opening often expressed as an f-number.
美加混凝土地面平整度与水平度的f数标准
The f-number standard for concrete floor developed by american concrete inst.and canadian standards asoc.

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