a particle (such as the pion) made of quark-antiquark pairs

listen to the pronunciation of a particle (such as the pion) made of quark-antiquark pairs
Английский Язык - Английский Язык

Определение a particle (such as the pion) made of quark-antiquark pairs в Английский Язык Английский Язык словарь

A particle (such as the pion) made of quark-antiquark pairs
meson