| |||
| longitud útil | |||
|
lunghezza utile : 10 phrases in 7 subjects |
| Chemistry | 1 |
| Communications | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 2 |
| Technology | 1 |
| Telegraphy | 1 |
| Transport | 3 |
| |||
| longitud útil | |||
|
lunghezza utile : 10 phrases in 7 subjects |
| Chemistry | 1 |
| Communications | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 2 |
| Technology | 1 |
| Telegraphy | 1 |
| Transport | 3 |