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
- mask read-only memory, mask ROM
- mask read-only memory，MROM
- mask register
- mask ROM
- mask training
- mask voltage
- Maslov
- Maslov bundle
- Maslov index
- Maslov method
- maslow’s hierarchy of needs
- Mas Marco Kartodikromo
- MAS NMR
- masochism
- Mason
- Mason & Dixon
- Masonic Lodge/ Freemasonry
- masonry cement
- masonry construction technology in song, Liao and Jin Dynasties
- masonry dam
- masonry engineering
- masonry mortar
- masonry of metallurgical furnaces
- masonry structure
- masonry support