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HES (Olga serz) |
ОТ, ООС И ТБ : 58 phrases in 12 subjects |
Caspian | 18 |
Construction | 1 |
General | 5 |
Industrial hygiene | 2 |
Karachaganak | 3 |
Nautical | 1 |
Occupational health & safety | 8 |
Oil and gas | 1 |
Production | 1 |
Sakhalin | 9 |
Security systems | 2 |
Tengiz | 7 |