 |
| |||
| air | |||
| zrak: 39 phrases in 12 subjects |
| Agriculture | 1 |
| Chemistry | 8 |
| Communications | 5 |
| Electric motors | 3 |
| Electric traction | 2 |
| Electricity generation | 1 |
| Environment | 7 |
| General | 4 |
| Mechanic engineering | 3 |
| Municipal planning | 3 |
| Natural sciences | 1 |
| Transport | 1 |
|
| |||
| air | |||
| zrak: 39 phrases in 12 subjects |
| Agriculture | 1 |
| Chemistry | 8 |
| Communications | 5 |
| Electric motors | 3 |
| Electric traction | 2 |
| Electricity generation | 1 |
| Environment | 7 |
| General | 4 |
| Mechanic engineering | 3 |
| Municipal planning | 3 |
| Natural sciences | 1 |
| Transport | 1 |