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意思解释：（Polar circle）离地球的一极的距离等于黄道斜度(黄赤交角)或约23度27分的两个纬圈之一。
地球上66°34′的纬线所形成的圈。1602年利玛窦《坤舆万国全图》:“以天势分山海，自北而南为五带:一在昼长、昼短二圈之间，其地甚热，带近日轮故也。二在北极圈之内，三在南极圈之内，此二处地居甚冷，带远日轮故也。四在北极、昼…
The group that the weft place of 34 ′ of on the earth 66 ° forms. 1602 benefit Ma antrum female area do 10 thousand countries pursue completely : Rake accumulate times holds the member that enthalpy tastes of childish glue ＃ delay grows in day, day is 2 short between, its ground is very hot, take recently annulus reason also. 2 it is in the Arctic circle, 3 it is in Antarctic, house of ground of this 2 place is very cold, the belt is far day annulus reason also. 4 in arctic, day...
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