常見(jiàn)例句雙語(yǔ)例句The aperture size (area of the aperture) of a lens could be calculated from focal length and the correspondent f-number.光圈孔的大小，可從鏡頭的焦距與焦距比數(shù)中計(jì)算出來(lái)。 返回 lens aperture number