 |
| |||
| кислородная маска | |||
| маска для кислорода | |||
| маска для подачи кислорода | |||
| oxygen mask: 36 phrases in 10 subjects |
| Aviation | 7 |
| Aviation medicine | 6 |
| Firefighting and fire-control systems | 3 |
| General | 1 |
| Medical | 11 |
| Microelectronics | 1 |
| Military | 2 |
| Paragliding | 1 |
| Technology | 3 |
| Weapons of mass destruction | 1 |