对人类的危险程度和放射性是什么？
燃料储量丰富，过程安全，废料尽管有放射性，但同裂变产生的废料相比，有害程度要小得多。
The fuel is abundant, the process safe and the waste, though radioactive, is far less noxious than the stuff left over from fission.
西姆斯使用放射性计时器测定并比较氡的两种同位素，以此来解密火山的活跃程度。
Sims USES radioactive clocks to decipher volcanic processes, measuring and comparing two isotopes of radon.
冷却水含有新闻报道的两种危险程度最低的放射性物质——放射氮和放射氚。
The water contains two of the least dangerous radioactive materials now in the news - radioactive nitrogen and tritium.
再通过浓集系数公式的换算，可以同时反映海水、土壤两方面放射性的污染程度。
Radioactive pollution degrees of both the sea water and the soil can be deduced by means of conversion of the concentration factor's formula.
为研究野外放射性污染物受雨、雪淋洗的程度，进行了模拟物的淋洗实验，结果初步表明有相当一部分放射性物质被淋出。
Leaching experiment with simulative material was carried out in order to study the leaching degree of field radioactive pollutant by rainwater and snow.
提示了花岗岩石材不同放射性对小鼠的生育和幼鼠的存活产生不同程度的影响。
The study suggested that different granite building materials had different influences on the survival and fertility of mice.
第三条根据放射性物品的特性及其对人体健康和环境的潜在危害程度，将放射性物品分为一类、二类和三类。
Article 3 the radioactive articles shall be classified into Categories I, II and III according to their characteristics and their extent of potential hazard to human health and environment.
目的观察放射性舌炎病损局部病损组织血管内皮细胞损伤的动态变化，分析其与放射性舌炎病损程度的相关性。
Objective To explore the correlation between the severity of radiotherapy-induced glossitis (RTG) and the injury of endothelial cells in the local tissues in a rat model.
目的观察放射性舌炎病损局部病损组织血管内皮细胞损伤的动态变化，分析其与放射性舌炎病损程度的相关性。
Objective To explore the correlation between the severity of radiotherapy-induced glossitis (RTG) and the injury of endothelial cells in the local tissues in a rat model.
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