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amtrak
释义
WordReference Random House Unabridged Dictionary of American English © 2024
Am•trak
(am
′
trak′),
USA pronunciation
n.
Rail Transport, Government
a government-subsidized public corporation created by Congress in 1970 to operate a national intercity passenger railroad system through contracts with existing railroads.
Am
(
erican
)
tra
(
vel on trac
)
k
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ionian mode
ionian sea
ionic
ionic bond
ion implantation
ionise
ionium
ionizable
ionization
ionization chamber
ionization potential
ionize
ionizer
ionizing radiation
iono-
ionogen
ionomer
ionone
ionopause
ionophore
ionosonde
ionosphere
ion propulsion
iontophoresis
i.o.o.f.
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更新时间:2025/7/23 22:47:35