理学 计算与理论化学 释 selection rule; transition rule 跃迁选择定则 角动量守恒定律和宇称守恒定律的结果。从大量光谱的观察分析和研究中总结出来，同时也可以从量子力学推导出来。
理论计算机科学 佩特里网 释文 transition rule 变迁规则
- practice field
- practice for food production and management
- Practice Manual of Archives Computer Management
- practice of education
- practice of human settlement by literati
- practice of human settlement by Yuwen kai
- practice of three-planning integration in Guangdong province
- practice theory
- practising exercises for tuina therapy
- Prado Museum in Madrid（Museo Nacional del Prado）
- Praecipua
- praefloration
- Praesepe
- Praetorius
- Prafulla Mohanti
- Prager crater
- pragma-dialectics
- pragmantic presupposition
- pragmaticalization
- pragmatic analysis
- pragmatic communication theory
- pragmatic development
- pragmatic evaluation
- pragmatic intelligence
- pragmatic jurisprudence