искровой разряд: 51 phrases in 14 subjects |
Aerodynamics | 3 |
Automobiles | 20 |
Chemistry | 1 |
Electronics | 10 |
Geology | 1 |
Mechanic engineering | 1 |
Microelectronics | 2 |
Missiles | 1 |
Oil / petroleum | 1 |
Optics branch of physics | 4 |
Pulp and paper industry | 1 |
Radio | 2 |
Technology | 3 |
Welding | 1 |