... radioactive indicator 放射指示剂,放射性指... radioactive ray 放射线 radioactive residue 放射性残渣 ...
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concrete for radioactive ray shielding 放射线屏蔽用混凝土
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。
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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