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单词
diafocal point
释义
diafocal point
diafocal point
[
¦dī·ə¦fō·kəl ′pȯint
]
(optics)
For a ray of light refracted by a lens, a point on the ray which lies on a plane passing through the axis of the lens which is parallel to the ray on the opposite side of the lens.
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更新时间:2025/12/3 5:51:37