note that charge symmetry is not a strong enough condition to deduce the existence of π°; we need charge independence. 请注意:单靠电荷对称性不足以推出的存在,我们还需要电荷无关性。
2.
< uk > note that charge symmetry is not a strong enough condition to deduce the existence of ; we need charge independence . < / uk > < uk >请注意:单靠电荷对称性不足以推出的存在,我们还需要电荷无关性。 < / uk >