 |
| filter bed: 50 phrases in 18 subjects |
| Aluminium industry | 1 |
| Biology | 1 |
| Chemistry | 1 |
| Construction | 10 |
| Ecology | 6 |
| Electrical engineering | 2 |
| Electronics | 7 |
| Energy industry | 5 |
| Geology | 2 |
| Makarov | 2 |
| Military | 1 |
| Natural resourses and wildlife conservation | 3 |
| Oil / petroleum | 2 |
| Oil and gas technology | 1 |
| Rail transport | 1 |
| Seismology | 1 |
| Technology | 2 |
| Water supply | 2 |