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защитные сооружения : 49 phrases in 16 subjects |
Astronautics | 4 |
Construction | 2 |
Ecology | 3 |
Energy industry | 1 |
Hydraulic engineering | 2 |
Hydrology | 1 |
Makarov | 2 |
Military | 20 |
Nautical | 1 |
Nuclear and fusion power | 1 |
Nuclear physics | 4 |
Occupational health & safety | 1 |
Oil and gas | 4 |
Seismology | 1 |
Thermal engineering | 1 |
Water supply | 1 |