[電子] 具有可變放大倍數(shù)的控制電路 amplification circuit: 放大電路amplification control: 增益控制audio amplification circuit: 聲頻放大電路differential amplification circuit: 微分放大電路double amplification circuit: 雙倍放大電路; 雙放大電路下載手機詞典可隨時隨地查詞查翻譯