головной и спинной мозг

listen to the pronunciation of головной и спинной мозг
الروسية - الإنجليزية
axion
A hypothetical boson having no charge or spin and small mass, proposed to explain the existence of certain symmetries of the strong nuclear force
A hypothetical subatomic particle postulated to account for the rarity of processes which break charge–parity symmetry
a hypothetical subatomic particle postulated to explain some symmetry problems arising in the strong nuclear force