And that larger amounts of other radioactive material, from discarded X-ray machines to spent fuel, might be used to make a dirty bomb.
其他大量的放射性材料，从废弃的X光机到核废料，可能被用于制造脏弹。
A radioactive process in which an atomic nucleus loses energy by emitting a gamma ray without a change in its atomic or mass Numbers.
原子核的一种放射性过程，在这种过程中由于放出一个伽马射线而损失能量，但并不改变原子序数或质量。
As viewed from applications the nuclear technology mainly includes the technology of ray and particle beams, and the technology of radioactive nuclides.
从应用的角度讲，核技术主要包括射线和粒子束技术与放射性核素技术。
A radioactive isotope of cobalt with mass number '0 and exceptionally intense gamma-ray activity, used in radiotherapy, metallurgy, and materials testing.
钴的一种放射性同位素，质子数'0，具有异常强烈的伽马射线作用，用于放射疗法、冶金和材料测试。
Naked eye observe, X-ray examination and osseous radioactive nucleon raster display were performed. After experimentation, the dogs were killed and the samples were sent to histology examination.
分别进行临床肉眼观察及X线检查，同时进行放射性核元素骨显象，实验结束后宰杀动物，取标本送组织学检查。
Naked eye observe, X-ray examination and osseous radioactive nucleon raster display were performed. After experimentation, the dogs were killed and the samples were sent to histology examination.
分别进行临床肉眼观察及X线检查，同时进行放射性核元素骨显象，实验结束后宰杀动物，取标本送组织学检查。
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