| 单词 | 调幅 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔AM〕Is this station AM or FM? 这是调幅台还是调频台？韦氏高阶〔amplitude modulation〕A broadcast system that uses amplitude modulation.调幅广播：使用调幅的广播系统美国传统〔amplitude modulation〕The encoding of a carrier wave by variation of its amplitude in accordance with an input signal.调幅：根据输入信号改变振幅的强度对电载波进行调制美国传统〔am〕You're listening to Radio Gold, broadcasting 24 hours a day on 909 AM.您正在收听的是黄金广播电台，全天24小时调幅909播出。剑桥高阶〔attenuate〕Electronics To reduce (the amplitude of an electrical signal) with little or no distortion.【电子学】 减弱讯号：在失真极小或不失真的情况下减弱（调幅或电子讯号）美国传统〔band〕The radio station broadcasts on the AM band.这家电台用调幅波段广播。韦氏高阶〔carrier wave〕An electromagnetic wave that can be modulated, as in frequency, amplitude, or phase, to transmit speech, music, images, or other signals.载波：一种如可在频率、调幅或相位方面被调制以传输语言、音乐、图象或其它信号的电磁波美国传统〔phase modulation〕A type of electronic modulation in which the phase of a carrier wave is varied in order to transmit the information contained in the signal.相位调制，调相：一种电子调幅，为了传递包含在信号中的信息，而使载波的相位改变美国传统You're listening to Radio Gold, broadcasting 24 hours a day on 909 AM.你正在收听的是黄金电台，每天24小时调幅909播出。剑桥国际 |
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