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单词 polar line
释义

polar line

/ˌpəʊlə ˈlʌɪn/
noun
1A line passing through a pole or related to a (geographic or magnetic) pole; especially a line joining north and south magnetic poles.
2 Geometry = polar.

Origin

Mid 17th century (in an earlier sense). From polar + line.

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更新时间:2024/11/11 1:33:15