RE elements

• 稀土元素

RE elements的用法和样例：

例句

1. 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。
2. The effect of Re element addition on the nitrogen content in the weld was insignificant due to the oxidization from the early deoxidization stage.
   而由于稀土元素在先期脱氧中大量氧化，其脱氮效果较弱，稀土元素对熔敷金属的总含氮量的影响不显著。