例句與造句

1. Dirac had also solved the problem of putting the Tomonaga Schwinger equation into the Schr鰀inger representation and given explicit expressions for the scalar meson field ( spin zero pion or pseudoscalar meson ), the vector meson field ( spin one rho meson ), and the electromagnetic field ( spin one massless boson, photon ).
2. It's difficult to find scalar meson field in a sentence. 用scalar meson field造句挺難的