 |
| уровень земли: 36 phrases in 17 subjects |
| Aerodynamics | 4 |
| Aviation | 3 |
| Cinema equipment | 1 |
| Construction | 8 |
| Economy | 1 |
| Environment | 1 |
| General | 4 |
| Geology | 1 |
| International Monetary Fund | 1 |
| Microelectronics | 1 |
| Military | 1 |
| Mining | 3 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
| Water supply | 1 |
| Wood processing | 2 |