 |
| |||
| multiple system (ssn) | |||
| система с параллельным включением: 4 phrases in 3 subjects |
| Oil / petroleum | 2 |
| Quality control and standards | 1 |
| Rail transport | 1 |
|
| |||
| multiple system (ssn) | |||
| система с параллельным включением: 4 phrases in 3 subjects |
| Oil / petroleum | 2 |
| Quality control and standards | 1 |
| Rail transport | 1 |