 |
| |||
| промышленная безопасность и охрана труда (Alexander Demidov) | |||
| health, safety and environmental protection: 6 phrases in 3 subjects |
| General | 3 |
| Oil and gas | 1 |
| Sakhalin | 2 |
|
| |||
| промышленная безопасность и охрана труда (Alexander Demidov) | |||
| health, safety and environmental protection: 6 phrases in 3 subjects |
| General | 3 |
| Oil and gas | 1 |
| Sakhalin | 2 |