 |
| |||
| carbon dioxide level | |||
| carbon dioxide content (in the soil air); CO₂ concentration (in the soil air) | |||
| содержание углекислоты: 11 phrases in 7 subjects |
| Aviation medicine | 1 |
| Ecology | 1 |
| Mechanic engineering | 1 |
| Medical | 5 |
| Nautical | 1 |
| Refrigeration | 1 |
| Technology | 1 |