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charging system : 60 phrases in 19 subjects |
| Automobiles | 1 |
| Blast-furnace practice | 1 |
| Ecology | 2 |
| Electrical engineering | 1 |
| Electronics | 2 |
| Energy industry | 2 |
| Galvanizing | 1 |
| General | 2 |
| Librarianship | 11 |
| Makarov | 2 |
| Mechanic engineering | 1 |
| Metallurgy | 10 |
| Military | 2 |
| Nautical | 3 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 1 |
| Oil / petroleum | 1 |
| Solar power | 2 |
| Technology | 14 |