单词：rare-earth element
rare-earth element的用法和样例：
例句
- 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。
- lanthanoid镧系元素
- rare earth稀土元素的氧化物...
- lanthanide[化]镧系元素（原子序数...
- lanthanon(=lanthanide...
单词：rare-earth element 相关文章
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英语新闻
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As you might expect, oxygen is our most abundant element, accounting for just under 50 percent of the Earth's crust, 你也许会想到，氧是最丰富的元素，占地壳的将近50%。 but after that the relative abundances are often surprising.
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