|
oxygen controls : 15 phrases in 10 subjects |
| Apollo-Soyuz | 1 |
| Astronautics | 5 |
| Automobiles | 1 |
| Aviation | 1 |
| Ecology | 1 |
| Medical | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
| Transport | 1 |
|
oxygen controls : 15 phrases in 10 subjects |
| Apollo-Soyuz | 1 |
| Astronautics | 5 |
| Automobiles | 1 |
| Aviation | 1 |
| Ecology | 1 |
| Medical | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
| Transport | 1 |