запорное устройство: 25 phrases in 15 subjects |
Aerodynamics | 1 |
Automobiles | 2 |
Construction | 1 |
Customs | 1 |
Electronics | 1 |
Energy industry | 1 |
Engines | 2 |
Firefighting and fire-control systems | 1 |
Foreign trade | 1 |
Hydrology | 3 |
Oil / petroleum | 2 |
Resins | 1 |
Signalling | 1 |
Technology | 2 |
Water supply | 5 |