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| сдвоенный индекс; сдвоенный номер | |||
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double number : 30 phrases in 12 subjects |
| Computers | 4 |
| Electronics | 1 |
| General | 2 |
| Information technology | 3 |
| Makarov | 2 |
| Mass media | 1 |
| Mathematics | 3 |
| Oil / petroleum | 1 |
| Patents | 1 |
| Physics | 1 |
| Programming | 8 |
| Technology | 3 |
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