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こうけいひ
Meanings
Noun
1. aperture ratio (inverse of the f-number); relative aperture
Alt. forms
口
こう
径
けい
比
ひ
こうけいひ
Pitch accent
こ
うけ
いひ
Composed of
こうけい
aperture; bore; calibre; caliber
ひ
ratio; proportion; match; equal; explicit comparison (style of the Shi Jing); Philippines