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单词
side band
释义
WordReference Random House Unabridged Dictionary of American English © 2024
side
′
band′,
[
Radio.
]
Radio and Television
the band of frequencies at the sides of the carrier frequency of a modulated signal.
Also,
side
′
band′.
1795–1805
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更新时间:2025/12/23 5:16:27