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单词
parfocal
释义
WordReference Random House Unabridged Dictionary of American English © 2024
par•fo•cal
(pär fō
′
kəl),
USA pronunciation
adj.
[
Optics.
]
Optics
of or pertaining to different eyepieces (of telescopes or microscopes) that all focus their images in the same plane, so that they can be interchanged without readjusting the instrument.
par
1
+
focal
1885–90
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更新时间:2025/11/23 14:41:55