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neper
释义
WordReference Random House Unabridged Dictionary of American English © 2024
ne•per
(nē
′
pər, nā
′
-),
USA pronunciation
n.
[
Physics.
]
Physics
the unit used to express the ratio of two amplitudes as a natural logarithm: equal to 8.68 dB.
Abbr.:
Np Also,
napier.
1920–25; after J.
Neper;
see
Napier
Ne•per
(nā
′
pər),
USA pronunciation
n.
Biographical
John.
See
Napier, John.
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didynamous
didynamy
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dieb. alt.
dieb. secund.
dieb. tert.
die cast
die-cast
die casting
die-casting
diecious
dieciously
died
die down
diefenbaker
dieffenbachia
die-hard
diehard
die-hardism
dieing
diel
dieldrin
dielectric
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更新时间:2026/10/20 18:21:21