 |
| кислородный баллон: 21 phrases in 11 subjects |
| Astronautics | 3 |
| Aviation | 5 |
| Construction | 1 |
| Firefighting and fire-control systems | 1 |
| Medical | 1 |
| Medical appliances | 1 |
| Military | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 4 |
| Travel | 1 |
|
| кислородный баллон: 21 phrases in 11 subjects |
| Astronautics | 3 |
| Aviation | 5 |
| Construction | 1 |
| Firefighting and fire-control systems | 1 |
| Medical | 1 |
| Medical appliances | 1 |
| Military | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 4 |
| Travel | 1 |