| 单词 | lanthanide series |
| 释义 | lanthanide series【化】 镧系 lanthanide series lanthanide series n.（名词）The set of chemically related elements with properties similar to those of lanthanum, with atomic numbers from 57 to 71; the rare-earth elements.镧系元素：和镧的特性相似的一组化学上相关的元素，原子序数从57到71；稀土元素 |
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