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никель : 107 phrases in 18 subjects |
| Accumulators | 1 |
| Astronautics | 3 |
| Automated equipment | 1 |
| Aviation | 1 |
| Chemistry | 26 |
| Electronics | 1 |
| General | 1 |
| Geology | 19 |
| Mechanic engineering | 6 |
| Medical appliances | 1 |
| Metallurgy | 27 |
| Mineralogy | 3 |
| Physics | 2 |
| Polygraphy | 1 |
| Radio | 2 |
| Shipbuilding | 2 |
| Technology | 9 |
| World war II | 1 |