dysprosium oxide

例句：

1. 1.This material is used in the production of high-performance optical lenses.
   这种材料用于生产高性能光学透镜。
2. 2.The research team discovered a new method to produce dysprosium oxide with higher purity.
   研究团队发现了一种新的方法，可以生产出纯度更高的镝氧化物。
3. 3.Dysprosium oxide is often used as a cathode for fluorescent lamps due to its unique properties.
   由于其独特的性质，镝氧化物常被用作荧光灯的阴极。