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Area Radio wave propagation / Terrestrial ionized media

IEV ref 705-06-33

en
polar cap
polar region bounded by an auroral zone

fr
calotte polaire, f
région polaire limitée par une zone aurorale

ar
غطاء قطبي

de
Polarkappe, f

it
calotta polare

ko
극관

ja
極層

pl
czapka polarna

pt
calota polar

sv
polarzon

Publication date: 1995-09
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