universal relation
| database system
| universal relation abbr. | |
| IT | 泛关系 |
| tech. | 全域关系 |
| database system abbr. | |
| IT | 数据库系统 |
| |||
| 泛关系 | |||
| 全域关系 | |||
| 通用关系 | |||
|
universal relation : 5 phrases in 2 subjects |
| Information technology | 4 |
| Technology | 1 |