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单词
cataract
释义
cataract
/katˈə-rakt/
noun
A waterfall
A waterspout, etc
An opaque condition of the lens of the eye, painless, unaccompanied by inflammation
The area rendered opaque, which is surgically removable
A portcullis (
obsolete
)
A floodgate (
Milton
)
ORIGIN:
L
cataracta
, from Gr
kataraktēs
portcullis, waterfall
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drift transistor
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drift tube
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更新时间:2026/8/5 13:45:38