aperture flux density

例句：

1. 1. The camera has a large aperture that 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. The scientist used apertures to control the amount of light entering the experiment.
   科学家使用光圈来控制进入实验的光量。
3. 3. The lens of the telescope is designed with an aperture to focus the light onto the detector.
   望远镜的镜头设计有光圈，将光线聚焦到探测器上。