frequency modulation
短语词组
- frequency modulationamplitude modulation converter 调频调幅变换器
- frequency shift modulation system 移频调制方式
- frequency -modulation chart 调频图
- swept frequency picture modulation 扫频信号图像调制
- frequency y modulation 调频;频率灯
- audio frequency shift modulation 声频位移调变
- low frequency light modulation 低频光调制
- frequency doubling modulation method 倍频调制法 返回 frequency modulation