 |
| |||
| Ortsgas m | |||
| works gas: 12 phrases in 6 subjects |
| Chemistry | 2 |
| Construction | 2 |
| Energy industry | 2 |
| General | 3 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 2 |
|
| |||
| Ortsgas m | |||
| works gas: 12 phrases in 6 subjects |
| Chemistry | 2 |
| Construction | 2 |
| Energy industry | 2 |
| General | 3 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 2 |