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单词 ring dial
释义

ring dial

/ˈrɪŋ dʌɪəl/
Now historical
noun
A small portable sundial in the form of one or more graduated metal rings.

Origin

Mid 17th century; earliest use found in Philosophical Transactions of the Royal Society of London. From ring + dial.

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更新时间:2024/12/25 16:02:38