beta-radiation detector beta radiator beta-radioactive nuclei beta-radioactive nucleus beta ray beta-ray electroscope beta-ray emitter beta-ray isotope beta-rubber beta spectroscopy beta-stable beta-stable isobar beta-stable isotope betatopic beta transition betatron betatron-acceleration duty betatron bar betatron core betatron oscillations |
beta-radiation detector детектор на бета-лъчение Търсената дума е намерена |