aperture

apertureapertureD.J.:[ˈæpətjuə]K.K.:[ˈæpətʃɚ]n.1.■孔, 隙缝; (照相机的)光圈, 孔径Into this aperture a droplet of mercury was poured.一小滴水银滴进了这个小孔。

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aperture['æpə,tjuə]n.1.■穴，孔，孔眼，洞，隙缝，空隙，缺口2.■[亦作 aperture stop]【光学】(照相机、望远镜等光学仪器镜头的)孔径；光圈；光阑

apertureaperture[ˈæpətjuə]n.1.■孔, 洞, 隙缝2.■(照相机的)孔径; 光圈, 快门3.■【光】(望远镜等的)镜径4.■光栅5.■(头足类)壳口6.■萌发孔(花粉)7.■采样aperture card穿孔卡片The only light came through a narrow aperture.仅有的光来自一个小孔。