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Subjects
Civil defense
6
Contamination area
[remove]
6
Decontamination
2
Decontamination of persons
2
Decontamination of technical equipment
2
Decontamination station
2
Engineering rescue services
2
Nuclear contamination
2
Public shelter
2
Radiation detection
2
Antichemical-protection service
1
Chemical decontamination techniques
1
Civil defense at factories
1
Civil defense exercise
1
Civil defense reconnaissance
1
Education of youth
1
Escape route
1
Hazardous area
1
Imperialist aggression
1
Laboratory
1