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| charge f | |||
| apkrova: 34 phrases in 13 subjects |
| Commerce | 2 |
| Communications | 1 |
| Earth sciences | 5 |
| Economy | 1 |
| Electronics | 1 |
| Environment | 4 |
| Fish farming pisciculture | 1 |
| General | 2 |
| Information technology | 2 |
| Materials science | 3 |
| Physical sciences | 1 |
| Statistics | 1 |
| Transport | 10 |