brown ytterbium niobium concentrate

例句：

1. 1.This is the first time we have used this type of brown ytterbium niobium concentrate.
   这是我们第一次使用这种类型的稀土铌合金浓缩物。
2. 2. The new technology uses brown ytterbium niobium concentrate to improve the efficiency of solar panels.
   新技术利用稀土铌合金浓缩物来提高太阳能板的效率。
3. 3. The research team focused on developing a brown ytterbium niobium concentrate with higher energy conversion efficiency.
   研究团队专注于开发具有更高能量转换效率的稀土铌合金浓缩物。