Thorium, chitsulo cholemera kwambiri cha radioactive komanso chodziwika bwino chogwiritsa ntchito zida zankhondo chapezeka mu uchi wa Sardinia, mkaka, ndi madera ena amtundu wa chakudya. 2.3 Ntchito zina zawonetsa kuti ma radionuclides osasungunuka (monga omwe amapangidwa ndi radiation ya uranium ndi zina ...
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