aperture of a mirror

例句：

1. 1.The camera has a large aperturefor capturing wide-angle shots.
   这台相机有一个大光圈，用于拍摄宽角镜头。
2. 2. The scientist used apertures to control the amount of light enteringthe camera.
   科学家使用光圈来控制进入相机的光量。
3. 3. The aperture ofthe telescope is very small, allowingonly a few pixels to passthrough.
   望远镜的孔径非常小，只有几个像素通过。