second normal form 第二范式，第二正规形式
数据库 数据库理论 释文 second normal form, 2NF 第二范式
- Klein configuration
- Klein coordinate
- Klein curve
- Kleine Festspielhaus
- Klein equation
- Klein Erlangen program
- Klein four-group
- Klein Gordon equation
- Klein-Gordon equation
- Klein-Gordon-Fock equation
- Klein-Gordon-Maxwell equation
- Klein graph
- Klein hypothesis
- Kleinian function
- Kleinian group
- Klein inequality
- Klein interpretation
- Klein line coordinate
- Kleinmann-Low Nebula
- Kleinmann-Low object
- Kleinmann-Low source
- Klein model
- Klein modular function
- Klein-Nishina cross-section
- Klein-Nishina formula