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chemical, biological, radiological and nuclear defense stresses
mil.	радиационная, химическая и биологическая защита (en.wikipedia.org/wiki/CBRN_defense 4uzhoj)
English thesaurus
chemical, biological, radiological, and nuclear defense
USA	Measures taken to minimize or negate the vulnerabilities to, and/or effects of, a chemical, biological, radiological, or nuclear hazard or incident (JP 3-11)

chemical, biological, radiological and nuclear defense: 2 phrases in 1 subject

Military

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