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
- drilling fluid stability
- drilling fluid supervision
- drilling fluid tank level gauge
- drilling fluid technology
- drilling fluid treatment agent
- drilling for geological mapping
- drilling geological logging
- drilling hole electrochemical machining tool
- drilling hole structure
- drilling hydraulics
- drilling in coalbed methane
- drilling in pressure balance
- drilling instrumentation
- drilling in surface mining
- drilling intelligence
- drilling level
- drilling machine
- drilling machine-hour
- drilling machine safety
- drilling method
- drilling mud additive
- drilling mud logging
- drilling mud logging parameters
- drilling non-production time
- drilling overflow