 |
|
indicateur de direction : 65 phrases in 12 subjects |
| Aviation | 3 |
| Communications | 3 |
| Electronics | 3 |
| Forestry | 1 |
| General | 5 |
| Life sciences | 3 |
| Lighting other than cinema | 1 |
| Mechanic engineering | 2 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 1 |
| Rail transport | 2 |
| Transport | 39 |