This radioactive form of nitrogen does not occur in nature.
氮的这种放射性形式在自然界中不会产生。
Some elements such as uranium, commonly used as fuel in nuclear power plants, are always radioactive; there is no nonradioactive form of them that naturally occurs in nature.
一些如铀一般的元素，通常在核电厂用作核燃料，都是有放射性的；这些元素由于自身的性质是没有无放射性状态的。
The exact effect will depend on the nature and the amount of radioactive material that have been ingested.
确切影响将取决于放射性物质的性质和摄入量。
The energetic signature of the souls from the alternative creation is either radioactive or electrical in nature.
而来自另一个创造物之灵魂的能量印记，其本质要不是放射性的，就是电的。
In nature, the element, whose nucleus is unstable and will grows to be nuclear of other element, is called radioactive element.
在自然界，凡原子核不稳定，过一些时间自发地变成其它元素原子核的元素，称为放射性元素。
For its well properties showing in research about immobilizing high level radioactive waste, pyrochlore which stably exists in nature has been well studied in recent years.
自然界中稳定存在的烧绿石由于在高放废物固化研究中呈现出的良好特性，近年来得到了大量的研究。
For its well properties showing in research about immobilizing high level radioactive waste, pyrochlore which stably exists in nature has been well studied in recent years.
自然界中稳定存在的烧绿石由于在高放废物固化研究中呈现出的良好特性，近年来得到了大量的研究。
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