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Radioactive material refers to material that may emit ionizing radiation by spontaneous nuclear transformation.
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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。 |
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Radioactive substances will speed up their dissipation to such a degree that what had hundreds of years of half life will simply cease to exist.
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放射性物质将加速其解体，使得还有好几百年（放射性）的半衰期物质完全停止存在。 |
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Radioactive waste must be carefully stored until it can safely be disposed of.
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人们在安全处理掉放射性废料之前，一定要把它仔细储藏起来。 |
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Radioactive waste refers to waste that is radioactive or is contaminated with radioactive material, including the spent nuclear fuel pending final disposal.
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五放射性废弃物：指具有放射性或受放射性物质污染之废弃物，包括备供最终处置之用过核子燃料。 |
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Radioactivity refers to the phenomenon of emitting ionizing radiation when a radionuclide spontaneously disintegrates.
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二放射性：指核种自发衰变时释出游离辐射之现象。 |
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Radiographic studies and pathological findings are demonstrated as well.
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其放射学检查及病理切片结果亦呈现典型的肺肿瘤栓塞变化。 |
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Radiographically, periosteal thickening and increases in pericortical 99Tcm-MDP uptake in bone scans may be seen.
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放射线的证据包括了骨膜增生和核医骨扫瞄下? |
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Radioisotope dating of the impact-melt samples—rocks that melted when an asteroid or comet struck the moon, therefore revealing when an impact occurred—shows that all these basins formed in a narrow interval between 3.9 billion and 3.8 billion years ago.
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利用放射性同位素为撞击熔融物（在小行星或彗星撞击月球时熔化的岩石，因此它们能显示撞击发生的时间）定年，显示这些盆地都在39~38亿年前一个很短的时间内形成。 |
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Radiological health protection standard for using sealed radioactive sources in oil and gas-fild logging.
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油(气)田测井用密封型放射源放射卫生防护标准. |
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Radiological protection monitoring procedure Part 1:Industrial X-ray detection.
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放射卫生防护监测规范第1部分：工业X射线探伤. |
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Radiological protection requirement for design of γ-ray teletherapy rooms.
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远距治疗室设计的放射防护要求。 |
