modulation of the frequency of the (radio) carrier wave
双语例句
用作名词 (n.)
The figure below illustrates a simple frequency modulation architecture. 下面的图表列举了一个简单的调频结构体系。
The FM system is used for changing the oscillating frequency of the magnetron. 调频机构用来改变磁控管的振荡频率。
A microvibration sensor based on the optical feedback effect in a direct frequency modulated laser diode is developed for optical detection of muscle vibration. 摘要为了实现肌肉震颤的光学探测，本文设计并研制了一套基于光反馈效应的直接频率调制激光二极管微振动传感器。
