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| age distribution (в популяции) | |||
| распределение возрастов: 16 phrases in 10 subjects |
| Business | 1 |
| Economy | 3 |
| Forestry | 4 |
| Makarov | 1 |
| Mathematics | 1 |
| Polymers | 1 |
| Psychology | 1 |
| Pulp and paper industry | 1 |
| Technology | 2 |
| Wood processing | 1 |
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