名词中文翻译
中文翻译：自然放射性
同义词：
['natural radioactivity', 'naturalradioactive', 'natural radiogenic']
例句：
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1. The study of natural radioactivity is crucial for understanding the originsof the Earth's crust.
研究自然放射性对于理解地球地壳的起源至关重要。
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2. Radioactive materials are often used in nuclear powerplants to generate electricity.
放射性材料通常用于核电站发电。
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3. The researchers found that the natural radioactivity in the soil was significantly higher thanexpected.
研究人员发现土壤中的天然放射性远高于预期。