名词
中文翻译：Unknown
同义词：
['Actinides', 'Actinides', 'Actinides metals', 'Actinides metalloids', 'Actinides metallides']
例句：
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1. The actinides are a group of radioactive elements that have very long half-lives.
锕系元素是一组放射性元素，具有非常长的半衰期。
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2. The discovery of new actinides metallides has opened up new possibilities for nuclear energy.
新发现的锕系金属化合物为核能开辟了新的可能性。
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3. The actinides metallides are used in the production of nuclear reactors and in medical imaging.
锕系金属化合物用于生产核反应堆和医学成像。