 |
| |||
| carbon dioxide concentration; CO₂ concentration (in the soil air); carbon dioxide content (in the soil air) | |||
| концентрация CO₂: 9 phrases in 4 subjects |
| Drilling | 1 |
| Makarov | 1 |
| Medical | 6 |
| Medical appliances | 1 |
|
| |||
| carbon dioxide concentration; CO₂ concentration (in the soil air); carbon dioxide content (in the soil air) | |||
| концентрация CO₂: 9 phrases in 4 subjects |
| Drilling | 1 |
| Makarov | 1 |
| Medical | 6 |
| Medical appliances | 1 |