radioactive material

The radioactive material is stored in a special radiation-proof container.

放射性材料储存在防辐射的特殊容器里.

A senior licensed operator may operate any sealed and unsealed radioactive material or any radioactive facilities.

三领有高级操作执照者,得操作任何密封或非密封放射性物质或任何能量之可发生游离辐射设备.

Obviously we wanna keep the radioactive material out of our environment or biosphere which basically gets into the maintenance of containment integrity.

很明显，我们想要保持放射线材料，不在我们的环境或者生物圈里，那基本上就是进入容量，完整性的保持。

the storage of radioactive material

放射性材料的存放

They detected radioactive material in the house.

他们探测到房子里有放射性物质.

The activity of the large area source is 22. 2 GBq and the deposition efficency of 63Ni is over 96%. The radioactive material 63Ni is uniformly distributed on the copper matrix and the nonuniformity is less than 5%.

制备的63Ni低能β放射源活度高达22.2GBq，63Ni的沉积率＞96%，放射源的不均匀度＜5%。

Radioactive material refers to material that may emit ionizing radiation by spontaneous nuclear transformation.

三放射性物质:指可经由自发性核变化释出游离辐射之物质.