электрическая дуга: 108 phrases in 14 subjects |
Aerodynamics | 2 |
Chemistry | 5 |
Electrical engineering | 1 |
Electronics | 73 |
General | 2 |
Metallurgy | 2 |
Missiles | 4 |
Oil / petroleum | 2 |
Optics branch of physics | 3 |
Plastics | 1 |
Security systems | 1 |
Shipbuilding | 1 |
Technology | 9 |
Welding | 2 |