We analyzed some typical identical bands with four - parameter abstract rotational spectrum formula of bohr - mottelson ' s i ( i + 1 ) expression , so we drew the conclusion . the dynamic moments of inertia j ( 2 ) of so - called two identical bands are very similar , but the kinetic moments of inertia j ( 1 ) and bandhead moments of inertia j0 are n ' t equal . signature partner bands are almost identical 在此基礎(chǔ)上運用bohr - mottelson的i ( i + 1 )展開公式對部分較為典型的超形變?nèi)瑤нM(jìn)行了分析,最后得出結(jié)論:所謂全同帶的確只是兩個帶的了j ~ ( ( 2 ) )比較接近,但兩個帶的j ~ ( ( 1 ) )和j _ 0一般并不相等,而signature對偶帶更接近全同。