| 单词 | 稀有元素 |
| 释义 | 〔lutetium〕A silvery-white rare-earth element that is exceptionally difficult to separate from the other rare-earth elements, used in nuclear technology. Atomic number 71; atomic weight 174.97; melting point 1,663°C; boiling point 3,395°C; specific gravity 9.840 (at 25°C); valence 3. See table at element 镥：一种很难从其它稀有元素中分离出来的用于核技术的银白色稀有元素。原子序数71；原子重量174.97；熔点1,663°C；沸点3,395°C；比重9.840（温度25°C时）；化合价3 参见 element〔pegmatite〕A coarse-grained granite, sometimes rich in rare elements such as uranium, tungsten, and tantalum.花岗伟晶岩：一种有时富含铀、钨和钽等稀有元素的粗纹理花岗岩 |
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