natural radioactive element meaning in English
天然放射性元素
Examples
- Even without these man made sources of radiation , exposed to natural background radiation . the rocks and soil of the earth s crust contain variable amounts of natural radioactive elements such as uranium and thorium . this varies with geography - for example the hottest places in britain are cornwall and around aberdeen
就算排除人为辐射，人类会在天然环境中接触到本底辐射，如地球外壳的岩石和泥土含有份量不同的辐射元素如铀和钍，而份量视乎地理位置，如英国的康瓦尔和阿伯丁郡最为热点。