reflection lens

例句：

1. 1. This is the first time I've seen a reflection of the moon on the water.
   这是我第一次在水面上看到月亮的倒影。
2. 2.The scientist used a refractory lens to observe the crystal structure.
   科学家使用了一个折射镜来观察晶体结构。
3. 3. The doctor advised him to use a refractory lens for his vision correction.
   医生建议他用一个折射镜来矫正他的视力。