snow clearing : 28 phrases in 14 subjects |
Airports and air traffic control | 1 |
Architecture | 1 |
Automobiles | 2 |
Aviation | 2 |
Construction | 3 |
Ecology | 2 |
General | 2 |
Hydrology | 1 |
Makarov | 5 |
Military | 2 |
Mining | 1 |
Public utilities | 2 |
Road works | 3 |
Technology | 1 |