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词汇
調幅廣播
释义
調幅廣播
tiáo fú guǎng bò
采用调幅方式所进行的无线电广播。优点是占用频带较窄一般不大于二十千赫,电路简单,故使用广泛,一般用在长波、中波和短波广播。在收音机刻度盘上简写成A.M.。
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更新时间:2025/4/30 5:56:26