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active material

军队 радіоактивна речовина
军队, 后勤 речовина, що розщеплюється
油和气 активна речовина
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active material
军队 Material, such as plutonium and certain isotopes of uranium, which is capable of supporting a fission chain reaction
军队, 后勤 Material, such as plutonium and certain isotopes of uranium, which is capable of supporting a fission chain reaction. (FRA)
active material
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