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单词
preselector
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pre•se•lec•tor
(prē′si lek
′
tər),
USA pronunciation
n.
[
Radio.
]
Radio and Television
a preamplifier between the antenna and receiving circuit, used to improve reception.
preselect
+ -
or
2
1925–30
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更新时间:2025/7/31 6:25:11