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- fallout radioactive material 放射性沉降物
- The radioactive material is stored in a special radiation-proof container. 放射性材料贮存在防辐射的特殊容器内。
- The substance does not belong to radioactive material. 该货物不属放射性危险性。
- You should be very careful when you use those radioactive material. 你们使用这些放射性物质的时候一定要非常小心。
- Radioactive material, Briefcases and attache case with installed alarm devices. 放射性物质、装有警报装置的手提箱和公事包。
- The radioactive material is stored in a special radiationproof container. 放射性物质被储存在一个特制的防辐射的容器里。
- The chemistry of radioactive materials. 放射化学研究放射性物质的化学
- All the radioactive materials give off the harmful radioactive which can be deadly at high levels. 所有这些放射性材料都放出有害的射线，小则致癌，大能致死。
- This is mainly natural stones, radium, thorium, potassium, the three radioelement in the decay of radioactive material. 主要来源于人造板材，会刺激人们的呼吸系统，造成咽喉炎、哮喘等疾病，被世界卫生组织列为可疑致癌物。
- The operation of facilities producing radioactive material shall be conducted by qualified operation personnel. 放射性物质生产设施之运转，应由合格之运转人员负责操作；
- After water absorption of the formation, radioactive material in the rock and pore structure will change. 地层吸水后，其岩层的放射性物质、孔隙结构等将发生变化；套管腐蚀以后也影响伽马射线的强度。
- The great fear is that the next mass assault will involve the use of lethal biological agents, poisonous chemicals or radioactive material. 人们极为害怕下一次大规模的袭击会使用致命的生物制剂、有毒的化学物质或放射性物质。
- Because of the continuous decay, the quantity of radioactive material and the rate of emission of radiation decrease steadily. 由于连续衰变的结果，放射性物质的数量，辐射发射率都逐渐下降。
- Such design and use shall also ensure with high reliability that radioactive material does not cause a significant contamination of outer space. 这种设计和使用还应极可靠地确保放射性材料不会显著地污染外层空间。
- Labelling- Sealed sources must be marked with a radiation warning symbol, and the activity and name of radioactive material involved. 标签-密闭源必须贴有辐射警示,并标有放射性物质的名称和活性。
- In addition to polychlorinated biphenyls (PCBs)、the river bottom is polluted with low-level radioactive material、heavy metals and other chemicals. 除了多氯联苯之外，阿什塔比拉河底的污染物还包括了低放射性物质、重金属和其他化学制品。
- Japanese power company says more radioactive material leaked from an earthquake-hit nuclear power plant than it previously reported. 日本一家电力公司说，受地震冲击的一座核电厂所泄漏的放射性物质比先前报导的要多。
- You have to be cautious when you use these radioactivity material. 你们使用这些放射性物质的时候一定要非常小心。
- Earlier this year government inspectors smuggled enough radioactive material to make two dirty bombs across two different border crossings. 今年早些时候，有政府检验人员通过两个边境站走私进了足以制造两颗脏弹的核材料。
- The core of this model is a function called a stretched exponential relaxation, which is similar to the decay curve of a radioactive material. 这个模型的核心是延伸型指数函数的松弛效应，就像放射性物质的衰变曲线一样。
