 |
| |||
| club survey (Moscowtran) | |||
|
специализированное исследование : 3 phrases in 3 subjects |
| Chemical nomenclature | 1 |
| Energy industry | 1 |
| Oil / petroleum | 1 |
|
| |||
| club survey (Moscowtran) | |||
|
специализированное исследование : 3 phrases in 3 subjects |
| Chemical nomenclature | 1 |
| Energy industry | 1 |
| Oil / petroleum | 1 |