最終更新日:2024/08/01
(geography) Either of the two parallels of the Earth located at the latitude of 66° 33′ 44″ N and 66° 33′ 44″ S.
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polar circle
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(geography) Either of the two parallels of the Earth located at the latitude of 66° 33′ 44″ N and 66° 33′ 44″ S.
polar circle