数据库 数据库理论 释文 fourth normal form, 4NF 第四范式
- trivalent graph
- trivalent map
- trivalent tree
- trivariate
- trivariate normal distribution
- trivector
- trivial
- trivial absolute value
- trivial action
- trivial algorithm
- trivial anthropic principle
- trivial basis
- trivial bending field
- trivial bundle
- trivial center
- trivial character
- trivial circuit
- trivial class
- trivial cohomology functor
- trivial crossed homomorphism
- trivial decomposition
- trivial deformation
- trivial dependence relation
- trivial derivation
- trivial-dimensional domain