| 单词 | Kellner |
| 释义 | Definition of Kellner in English:Kellnernoun ˈkɛlnə
OriginMid 19th century; earliest use found in Proceedings of the Royal Society of London. From the name of Karl Kellner, German optical instrument maker, who introduced the eyepiece in 1849. Definition of Kellner in US English:Kellnernounˈkɛlnə
OriginMid 19th century; earliest use found in Proceedings of the Royal Society of London. From the name of Karl Kellner, German optical instrument maker, who introduced the eyepiece in 1849. |
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