短語(yǔ)詞組短語(yǔ)frequency modulationamplitude modulation converter 調(diào)頻調(diào)幅變換器frequency shift modulation system 移頻調(diào)制方式frequency -modulation chart 調(diào)頻圖swept frequency picture modulation 掃頻信號(hào)圖像調(diào)制frequency y modulation 調(diào)頻;頻率燈audio frequency shift modulation 聲頻位移調(diào)變low frequency light modulation 低頻光調(diào)制frequency doubling modulation method 倍頻調(diào)制法 返回 frequency modulation