 |
| |||
| hygiene rules (Alexander Demidov) | |||
|
правила гигиены : 14 phrases in 6 subjects |
| Aviation | 1 |
| General | 4 |
| Labor law | 2 |
| Medical | 1 |
| Name of organization | 4 |
| Occupational health & safety | 2 |
|
| |||
| hygiene rules (Alexander Demidov) | |||
|
правила гигиены : 14 phrases in 6 subjects |
| Aviation | 1 |
| General | 4 |
| Labor law | 2 |
| Medical | 1 |
| Name of organization | 4 |
| Occupational health & safety | 2 |