International
Electrotechnical
Commission
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Area
Radiology and radiological physics
/ Ionizing radiations : types and properties
IEV ref
881-02-29
en
natural radioactivity
radioactivity of naturally occurring radioactive material
fr
radioactivité naturelle
, f
radioactivité de nucléides existant à l'état naturel
ar
نشاط إشعاعي طبيعي
es
radiactividad natural
it
radioattività naturale
ko
자연방사능
ja
自然放射能
pl
radioaktywność naturalna
pt
radioactividade natural
sv
naturlig radioaktivitet
zh
天然放射性
Publication date:
1983-01
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