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Subjects
Civil defense
4
Public shelter
[remove]
4
Civil defense reconnaissance
2
Contamination area
2
Air defense
1
Air raid
1
Decontamination station
1
Demonstrative exercise
1
Energy supply
1
Engineering rescue services
1
Escape route
1
Hazardous area
1
Radiation hazard
1
Railway
1
Shelter furnishing
1
Simulation
1
Traffic control
1
Transportation
1