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f-number
['efˌnʌmbə]
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gen.
f数
agric.
f 值
指镜头相对孔径的倒数
显技
multimed.
光圈值
;
光圈系数
;
光圈大小
;
焦距孔径比数
space
f 值
(镜头相对孔径的倒数)
tech.
★
光圈号数
telecom.
光圈数
;
f 数
F number
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adv.
焦距比数
rem.sens.
光圈数
tech.
F值
透镜的焦点距离 f和它的有效口径 D之比
English thesaurus
f-number
['efˌnʌmbə]
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abbr.
focal number
abbr., opt.
f /#
f- number
:
6 phrases
in 1 subject
Technology
6
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