The rest of the analysis is concerned with finding the parity as well as the spin.
余下的分析不仅涉及到求自旋，而且还要求出宇称。
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。
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