aperture

noun

/ˈæpətʃə(r)/

/ˈæpərtʃʊr/

jump to other results

(formal) a small opening in something小孔；缝隙
- The soldier fired the rifle through a narrow aperture in a pile of sandbags.士兵从一堆沙袋的一个狭窄缝隙中射出步枪。
- The bell ropes passed through apertures in the ceiling.拉铃用的拉绳从天花板的缝隙里穿过来。
(specialist) an opening that allows light to reach a lens, especially in cameras（尤指摄影机等的光圈）孔径
- For flash photography, set the aperture at f. 5.6.用闪光照相，要把光圈孔径定为 5.6。
- Open up the lens aperture to maximize the brightness of the shot.打开镜头孔径，使照片亮度变为最大。
- Binoculars of this aperture are very expensive.这个光圈的双筒望远镜很贵。

Word Originlate Middle English: from Latin apertura, from apert- ‘opened’, from aperire ‘to open’.