 |
| |||
| maintenance training | |||
| обучение методам технического обслуживания: 4 phrases in 2 subjects |
| Oil / petroleum | 3 |
| Quality control and standards | 1 |
|
| |||
| maintenance training | |||
| обучение методам технического обслуживания: 4 phrases in 2 subjects |
| Oil / petroleum | 3 |
| Quality control and standards | 1 |