理学 数据库系统设计 释 semantic data model 语义数据模型 一种基于高层语义的数据库描述和结构形式，是具有较强的语义功能的模型。
数据库 数据库应用开发 释文 semantic data model 语义数据模型
- sexual cycle
- sexual desire
- sexual desire criminal psychology
- sexual development
- sexual differentiation
- sexual dimorphism
- sexual dysfunction
- sexual dysfunction identification
- sexual dysgenesis
- sexual enchantment
- sexual ethic
- sexual excitation
- sexual generation
- sexual happiness
- sexual harassment
- sexual hierarchy
- sexual hybridization
- sexual interaction
- sexual isolation
- sexuality
- sexuality culture
- sexuality/gender
- sexualized
- sexual life cycle
- sexually transmitted diseases