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| система индексации | |||
| система обозначений | |||
| система обозначения | |||
| notation system: 31 phrases in 12 subjects |
| Automated equipment | 1 |
| Biology | 1 |
| Finances | 2 |
| Information technology | 7 |
| Librarianship | 8 |
| Makarov | 2 |
| Mathematics | 3 |
| Mechanics | 2 |
| Programming | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| Textile industry | 2 |