selection rules短语⁸⁴³²⁰⁺⁸ 基本例句 选择定则 The paper describes a brief deduction to have the parity selection Rules of Quanta Transition, Spin Selection Rules and other Selection Rules about Symmetric kinds by the method of Group Theory. 用群论的方法，较简练地推断出量子跃迁的宇称选择定则，自旋选择定则，与对称类型有关的选择定则等。 cnki