名词中文翻译1
中文翻译：Unknown
同义词：
['radioactive material', 'radioactive substance']
例句：
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1. The discovery of this naturally occurring radioactive substance has sparked a new field of research.
这种自然发生的放射性物质的发现引发了一个新的研究领域。
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2. The government is investigating the naturally occurring radioactive substance found in the area.
政府正在调查该区域发现的天然放射性物质。
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3. This naturally occurring radioactive substance has been linked to cancer risks.
这种天然放射性物质已被与癌症风险联系起来。