field flattening lens

例句：

1. 1.The field flattening lens is used to capture the image of the object in the field.
   田野平整透镜用于捕捉物体在田野中的图像。
2. 2. The field flattening lens is a crucial component of the telescope.
   田野平整透镜是望远镜中至关重要的组成部分。
3. 3. The field flattening lens helps to reduce the amount of light that passes through the telescope.
   田野平整透镜有助于减少通过望远镜的光量。