aperture error of a sieve

例句：

1. 1.The camera has a large aperturethat allows for wide-angle shots.
   这台相机有一个大光圈，可以拍摄宽角照片。
2. 2. Thescientist used an aperture to control the amount oflight entering the experiment.
   科学家使用一个孔来控制进入实验的光线量。
3. 3.The aperture in the lens iswhat determines the quality of the image.
   镜头中的孔决定了图像的质量。