modulatev.调整；调节（声音）；变调modulate signal generator调制信号发生器modulated-analog signal模拟调制信号modulated electron stream已调制的电子流modulated amplifier valve调制放大器管modulated carrier voltage已调载波电压modulated carrier channel调制载波波道modulated data subcarrier已调数据副载波modulated photoexcitation调制光激发modulated lapped transform调制重叠变换modulated-carrier system调制载波系统