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单词
dedendum
释义
WordReference Random House Unabridged Dictionary of American English © 2024
de•den•dum
(di den
′
dəm),
USA pronunciation
n., pl.
-da
(-də).
USA pronunciation
[
Mach.
]
Mechanical Engineering
(on a gear or rack) the radial distance between the pitch circle or line and the root circle or line. Cf.
addendum
(def. 3a).
Latin: to be given up, gerund, gerundive of
dēdere,
equivalent. to
dē-
de
- +
-dere
combining form of
dare
to give; see
addendum
1900–05
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更新时间:2025/12/6 19:16:51