 |
| producing area: 30 phrases in 14 subjects |
| Agriculture | 2 |
| Agrochemistry | 1 |
| Ecology | 3 |
| Economy | 4 |
| Electronics | 1 |
| Forestry | 1 |
| General | 1 |
| Makarov | 8 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 2 |
| Nuclear physics | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 2 |
| Oilfields | 2 |