【摘要】 总结了过去几年偶偶核低激发谱系统学的研究现状，结合自己的工作，主要综述了ＮπＮυＳｃｈｅｍｅ、非简谐振子描述、电磁跃迁系统学及求和规则等有关问题更多还原

【Abstract】 Present status of the systematics on even even nuclei is reviewed in this articie. Based on author’s recent work, special attention is paid to the so called N π N υ scheme, the anharmonic vibrator description, the systematics of the electromagnetic (EM) transitions and the EM sum rules, etc .更多还原