辐射源 [核] source of radiation
- 食物和水中也有痕量的辐射源。
Small traces of radiation are present in food and water. - 我们家中的氡是接触致电离辐射的主要来源,在许多国家中占大众接触自然发生的辐射源的50%。
Radon in our homes is the main source of exposure to ionizing radiation, and accounts for 50% of the public's exposure to naturally-occurring sources of radiation in many countries. - 他们不知道这件“废品”里有一个用于治疗癌症患者的高辐射源。
Unbeknown to them, the "scrap" contained a highly radioactive source used to treat cancer patients.
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