| 单词 | polar dial |
| 释义 | Definition of polar dial in English:polar dialnoun
OriginLate 17th century; earliest use found in George Sinclair (d.?1696), natural philosopher. Definition of polar dial in US English:polar dialnoun
OriginLate 17th century; earliest use found in George Sinclair (d. ?1696), natural philosopher. |
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