The Rare-earth Element
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- earth n.地球；泥土；世间
- element n.要素；元素；（学科的）基本原则；(复数)恶劣天气；元件
- rare adj.罕见的；珍贵的；煎得嫩的
- the art.那；这；这些；那些adv.（用于比较级前）更加；用于最高级前；(用于形容词、副词比较级前)越...越...
- 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。
- The extent of beneficial effect of each element considerably depended on its affinity for oxygen.
各合金优良的抗氧化性与稀土元素对氧的亲和力密切相关。
