защитное устройство: 47 phrases in 20 subjects |
Automobiles | 1 |
Aviation | 1 |
Construction | 2 |
Electrical engineering | 11 |
Electronics | 4 |
General | 1 |
Geology | 1 |
Mechanic engineering | 1 |
Metallurgy | 2 |
Natural resourses and wildlife conservation | 1 |
Nautical | 2 |
Nuclear and fusion power | 2 |
Nuclear physics | 4 |
Radio | 3 |
Rail transport | 2 |
Security systems | 1 |
Sewing and clothing industry | 1 |
Shipbuilding | 2 |
Technology | 4 |
Wood processing | 1 |