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单词 polar dial
释义

Definition of polar dial in English:

polar dial

noun
  • A sundial whose gnomon lies in a plane containing the earth's axis.

Origin

Late 17th century; earliest use found in George Sinclair (d.?1696), natural philosopher.

Definition of polar dial in US English:

polar dial

noun
  • A sundial whose gnomon lies in a plane containing the earth's axis.

Origin

Late 17th century; earliest use found in George Sinclair (d. ?1696), natural philosopher.

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更新时间:2024/9/21 19:26:55