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
- polycentric governance
- polychlorinated biphenyl
- polychlorinated biphenyls
- polychlorinated dibenzofurans
- polychlorinated dibenzofurans (PCDFs)
- polychlorinated dibenzo-pdioxins
- polychlorinated dibenzo-pdioxins (PCDDs)
- poly(chlorinated halogenated olefin)
- polychloroether
- polychloroprene
- poly (chlorotrifluoroethylene)
- polychlorotrifluoroethylene
- poly (chlorotrifluoroethylene); polytrifluorochloroethylene (PCTFE)
- polychoric correlation
- polychoron
- polychroism
- polychroism, polychromatism
- polychromatic
- polychromatic fiber
- polychromatic group
- polychromatic light
- polychromatic percolation
- polychromatism
- polychromator
- Polychrome