aperture restrictor

例句：

1. 1. The camera's aperture restrictor is designed to minimize light loss during exposure.
   相机的孔径限制器设计用来在曝光时最小化光线损失。
2. 2.The scientist used an aperture restrictor to control the amount of light entering the experiment.
   科学家使用了一个孔径限制器来控制进入实验的光量。
3. 3.The aperture restrictor was crucial in maintaining the stability of the optical system.
   孔径限制器在保持光学系统稳定性方面至关重要。