medium standard frequency标准中频
medium-frequency telegraphy中频通报
medium-frequency rotary中频旋转换流机
medium-frequency generator中频发生器
Medium-frequency Pulse中频脉冲电疗
medium-frequency converter中频变流器
medium-frequency loss中频损耗
To overcome this problem, we think to digitized the signal at medium frequency, even RF, and then demodulate it in digital domain.
为克服这一问题，人们考虑在中频，甚至射频就对信号数字化，再在数字域内进行解调。
参考来源 - 高速数据采集系统的研制N（名词） a radio-frequency band or radio frequency lying between 3000 and 300 kilohertz (无线电)中波段 ( abbr: MF)