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
- soft-shelled turtle propagation
- soft-shelled turtle seed culture
- soft shower
- softsoil ground improvement and reinforcement
- soft solar X-rays
- soft solder
- soft solid
- soft state
- soft stop
- soft superconductor
- soft supersymmetry breaking
- soft switch
- softswitching
- soft systems methodology
- soft template method
- soft tennis
- soft tissue cysts of oral and maxillofacial region
- soft tissue repair materials
- soft tissue tumors
- soft tones
- soft tube
- soft valve
- soft ware
- software
- software acceptance