 |
| дыхательная маска: 16 phrases in 8 subjects |
| Aviation | 1 |
| Firefighting and fire-control systems | 8 |
| General | 1 |
| Medical | 2 |
| Medical appliances | 1 |
| Occupational health & safety | 1 |
| Oil processing plants | 1 |
| Scuba diving | 1 |
|
| дыхательная маска: 16 phrases in 8 subjects |
| Aviation | 1 |
| Firefighting and fire-control systems | 8 |
| General | 1 |
| Medical | 2 |
| Medical appliances | 1 |
| Occupational health & safety | 1 |
| Oil processing plants | 1 |
| Scuba diving | 1 |