закалённая сталь: 25 phrases in 15 subjects |
Architecture | 1 |
Astronautics | 1 |
Caspian | 2 |
Construction | 1 |
Drilling | 1 |
General | 1 |
Jewelry | 2 |
Makarov | 1 |
Mechanic engineering | 1 |
Mechanics | 2 |
Metallurgy | 2 |
Mining | 1 |
Oil / petroleum | 2 |
Technology | 5 |
Transport | 2 |