|
practical units : 7 phrases in 7 subjects |
| Automated equipment | 1 |
| Ecology | 1 |
| General | 1 |
| Military | 1 |
| Oceanography & oceanology | 1 |
| Rail transport | 1 |
| Technology | 1 |
|
practical units : 7 phrases in 7 subjects |
| Automated equipment | 1 |
| Ecology | 1 |
| General | 1 |
| Military | 1 |
| Oceanography & oceanology | 1 |
| Rail transport | 1 |
| Technology | 1 |