名词
中文翻译：辐射物
同义词：
['radioactive', 'radioactive material']
例句：
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1. Radiation is a major concern in the field of nuclear energy.
辐射是核能领域的主要关注点。
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2. The scientists used special equipment to detect the presence of radiation.
科学家们使用特殊的设备来检测辐射的存在。
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3. The study found that exposure to high levels of radiation could have serious health effects.
研究发现，暴露在高水平的辐射下可能会产生严重的健康影响。