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
- waterway transport business documents
- water weed
- water weeds
- water well
- water-well drilling
- waterwheel plant
- water-wind erosion crisscross region
- Water Witch Episode
- waterworks
- water yield in mines
- Wating for Playing Chess in the Mountain by Liao
- Wating the Ship at the Col in Summer by Dong Yuan
- Watkins factor
- Watson
- Watson crater
- Watson Crick base pair
- Watson-Crick base pair
- Watson-Crick model
- Watson formula
- Watson identity
- Watson lemma
- Watson Mcmillen Hayes
- Watson-Nicholson formula
- Watson question answering system
- Watson quintuple product identity