rare-earth metals

• 稀土金属；稀土元素

rare-earth metals的用法和样例：

例句

1. Yttrium serves as an ideal non-magnetic diluent for the rare-earth metals.
   钇被用作稀土金属一种理想的非磁性稀释剂。
2. Yet another rare earth metal, lanthanum, is a major ingredient for hybrid car batteries.
   而另一种稀土金属镧，则是混合动力车电池的主要原料。
3. The color of Apatite is often due to the presence of rare earth elements.
   磷灰石的颜色常取决于存在的稀土元素。
4. This method could determine many non-REE in enriched-europium mixture rare earth oxide at a time and it was a rapid method.
   该方法能同时测定富铕混合稀土氧化物中多种非稀土元素的含量，提高了分析速度。