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.
| 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 |
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