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| 分层数据库 | |||
| 层次数据库 | |||
| 层次式数据库 | |||
| 层次型数据库 | |||
| Inglés tesauro | |||
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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 a las frases, 3 temas |
| Electrónica | 2 |
| Gestión de proyectos | 1 |
| Tecnología de la información | 5 |