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| 层次数据库 | |||
| 层次式数据库 | |||
| 分层数据库 | |||
| 层次型数据库 | |||
| Английский тезаурус | |||
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| A database structured in a tree/root or parent/child relationship (Each parent can have many children, but each child may have only one parent) | |||
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hierarchical database : 8 фраз в 3 тематиках |
| Информационные технологии | 5 |
| Управление проектами | 1 |
| Электроника | 2 |