对称代码:(i)−x个+1,−年+1,−z(z)+1; (ii)x个−1,年,z(z); (iii)−x个+1,−年,−z(z)+1; (iv)x个−1,年−1,z(z); (v)−x个+1,年−1/2,−z(z)+3/2; (vi)x个−1,−年+1/2,z(z)−1/2; (vii)x个+1,年,z(z); (viii)x个,−年+1/2,z(z)−1/2; (ix)−x个+1,年+1/2,−z(z)+3/2; (x)x个,−年+3/2,z(z)−1/2; (十一)x个+1,−年+1/2,z(z)−1/2; (十二)x个+1,年+1,z(z); (十三)x个−1,−年+1/2,z(z)+1/2; (十四)−x个+1,−年+1,−z(z)+2; (十五)x个,年−1,z(z); (十六)−x个,年−1/2,−z(z)+3/2; (十七)x个,−年+3/2,z(z)+1/2;(十八)x个,−年+1/2,z(z)+1/2. |