This thesis studies and designs a wireless interphone of frequencymodulation.
本论文研究设计了一款调频无线对讲机。
2
The7years 'applicable practices indicate that the frequencymodulation technology with dc bus voltage ripples is very effective to suppress acoustic resonances.
7年的使用实践表明，直流脉动电压频率调制技术对抑制声谐振现象十分有效。
3
Through proper adjustment to frequencymodulation amplitude, the Kerr-effect-induced bias can be effectively reduced.