Civil Defense Engineering
Инженерно-технические мероприятия гражданской обороны |
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KKLD 227Border Zone Regulations in Khabarovsk Krai |
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Rosstat 132Goscomstat Resolution 132 Of 12 26 00 Minenergo … |
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GOST R 22.1.12-2005Safety in emergencies. Structured system for … |