例句與造句

1. Empirically, since the light quarks actually have minuscule nonzero masses, the pions also have nonzero rest masses.
2. This symmetry is now understood to underlie the light quarks, extending isospin to include strangeness, a quantum number which he also discovered.
3. The light quarks in a meson move at relativistic speeds, since the mass of the bound state is much larger than the mass of the quark.
4. The 1 + + multiplet of light mesons may show similar behavior to that of the vector mesons, in that the mixing of light quarks with strange quarks appears to be small for this quantum number.
5. Therefore, in the walking-? TC region, ? m E " 1 and, from Eqs . ( 2 ) and ( 3 ), the light quark masses are enhanced approximately by " M"
6. It's difficult to find light quark in a sentence. 用light quark造句挺難的
7. In QCD, this is interpreted as a consequence of spontaneous symmetry breaking of chiral symmetry in a sector of QCD with 3 flavors of light quarks, " u ", " d " and " s ".
8. In both figures the data are compared to theoretical calculations, the curves representing the analysis of photon structure function data based on the standard higher-order QCD prediction for three light quarks supplemented by the charm quark contribution and a residual hadronic component accounted for by vector meson dominance.