天然放射性 meaning in English

natural activity
natural radioactivity
naturalradioactivity
radioactive decay

Natural radioactivity contains a store of valuable information .
天然放射性包含着许多有价值的信息。
Alpha particles are positively charged helium nuclei obtained from natural radioactive decay .
粒子是从天然放射性蜕变得到的带正电的氦核。
Natural radiation hazards in construction materials
建材的天然放射性危害现状分析
How does natural radiation enter our body through the biosphere
天然放射性物质是怎样经过生物圈进入人体？
Natural radioactive background
天然放射性本底

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