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单词
kellner eyepiece
释义
WordReference Random House Unabridged Dictionary of American English © 2024
Kell
′
ner eye
′
piece
(kel
′
nər),
USA pronunciation
[
Optics.
]
a Ramsden eyepiece having an achromatic lens, used in binoculars.
after Carl
Kellner
(1826–55), German opticist and lens maker
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更新时间:2025/11/28 9:04:25