包装好的食品不可能受到放射性污染；例如，罐装食品或者塑料包装食品，只要这些食品是密封的，便不会受放射性污染。
Radioactivity cannot contaminate food that is packaged; for example, tinned or plastic-wrapped food is protected from radioactivity as long as the food is sealed.
近接治疗是将密封性放射性射源借由组织插种或植入病人体腔的方式，在短距离的情况下给予肿瘤高剂量。
Brachytherapy is a method of treatment in which sealed radioactive sources are used to deliver radiation at a short distance by interstitial, intracavitary.
在一个实施方式中，近距离放射治疗植入粒子包括其内容纳有放射性核的密封无机金属圆筒。
In one implementation, a brachytherapy implant seed includes a sealed inorganic metallic cylinder having a radioactive core received therein.
丢失放射性密封源是同位素应用的最安全隐患，应重点加强监管。
The loss of radiative seal sources is the biggest security hidden trouble for application of isotope, Should be managed and inspected carefully.
防卫省官员表示，放射性材料氪放在密封的玻璃容器内，即使在海里遭到损毁也只会对人们的健康以及环境产生轻微的影响。
The officials said the radioactive material krypton was sealed in glass container and would have little impact on human health and environment even if it was damaged in the sea.
核测井使用的密封中子源和伽马源具有较强的放射性，对操作人员有一定的辐射损伤。
Sealed neutron source and gamma source used in nuclear logging have strong radioactivity which is harmful to operators.
核测井使用的密封中子源和伽马源具有较强的放射性，对操作人员有一定的辐射损伤。
Sealed neutron source and gamma source used in nuclear logging have strong radioactivity which is harmful to operators.
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