名词
中文翻译：氡籽粒
同义词：
['radon seeds', 'radon grains']
例句：
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1.Radon seeds are a natural radioactive substance that can be found in soil and water.
氡籽粒是一种天然放射性物质，存在于土壤和水中。
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2. Radon seeds have been used for many years to detect the presence of radioactive materials in buildings.
多年来，人们一直使用氡籽粒来检测建筑物中放射性物质的存在。
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3. Radon seeds are also used in medical imaging devices to help doctors diagnose lung cancer.
在医疗成像设备中，氡籽粒也被用来帮助医生诊断肺癌。