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单词
visual acuity
释义
WordReference Random House Unabridged Dictionary of American English © 2024
vis
′
ual acu
′
ity,
[
Ophthalm.
]
Ophthalmology
acuteness of the vision as determined by a comparison with the normal ability to define certain letters at a given distance, usually 20 ft. (6 m).
Abbr.:
V.
1885–90
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更新时间:2024/9/21 3:34:42