| |||
vital air (подаваемый в подземные выработки) | |||
inhaled air | |||
breathing air | |||
breathable air (Yeldar Azanbayev) |
воздух для дыхания: 16 phrases in 11 subjects |
Drilling | 1 |
Ecology | 1 |
General | 2 |
Makarov | 1 |
Medical | 1 |
Military | 1 |
Mining | 1 |
Nautical | 1 |
Occupational health & safety | 3 |
Oil and gas | 2 |
Technology | 2 |