 |
| |||
| human life and health (Alexander Demidov) | |||
| жизнь и здоровье людей: 9 phrases in 5 subjects |
| General | 3 |
| Occupational health & safety | 1 |
| Oil and gas | 2 |
| Security systems | 1 |
| Weapons of mass destruction | 2 |
|
| |||
| human life and health (Alexander Demidov) | |||
| жизнь и здоровье людей: 9 phrases in 5 subjects |
| General | 3 |
| Occupational health & safety | 1 |
| Oil and gas | 2 |
| Security systems | 1 |
| Weapons of mass destruction | 2 |