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active materials
med. actieve massa; werkzame massa
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active material
mil. Material, such as plutonium and certain isotopes of uranium, which is capable of supporting a fission chain reaction
mil., logist. Material, such as plutonium and certain isotopes of uranium, which is capable of supporting a fission chain reaction. (FRA)
active materials: 2 phrases in 2 subjects
Communications1
Environment1

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