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单词
entrance pupil
释义
WordReference Random House Unabridged Dictionary of American English © 2024
en
′
trance pu′pil,
[
Optics.
]
Optics
the image of the aperture viewed from the objective of an optical system limiting the rays that enter the system. Cf.
exit pupil.
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更新时间:2025/11/8 0:14:16