天然放射性物质
- 网络Naturally Occurring Radioactive Material, NORM; naturally occurring radioactive substance; natural radiative material
天然放射性物质天然放射性物质
Naturally Occurring Radioactive Material, NORM
天然放射性物质(Naturally Occurring Radioactive Material,NORM)是指含有天然放射系长寿命母体(238U和232Th)及其子体的一 …
naturally occurring radioactive substance
naturally... ... naturally occurring isotope 自然界存在的同位素 naturally occurring radioactive substance 天然放射性物质 ...
natural radiative material
WS 178-1999... ... 3.4 釉下彩 under glaze decoration 3.5天然放射性物质 natural radiative material ...
NormallyOccurring Radioactive Materials
声明指出，有关工厂排放的残留物被分类为“天然放射性物质”（NormallyOccurring Radioactive Materials）。两个部门向人民保 …