n.调节器；调制器；调幅器（M，MOD）

The modulator converts the digital signal into an analog format that can be transmitted over radio frequencies.
模调器将数字信号转换为可以在无线电频率上传输的模拟格式。
In telecommunications, a modulator is used to impress data onto a carrier wave for transmission.
在电信领域中，模调器用于将数据加载到载波波上以便进行传输。
The FM modulator in a car stereo system changes the frequency of the radio signal to match the audio input.
车载立体声系统中的调频模调器会改变无线电信号的频率以匹配音频输入。
A light modulator is an optical device that varies the intensity, phase, or polarization of light.
光调制器是一种光学装置，可改变光的强度、相位或偏振状态。
The amplitude modulator adjusts the height of the carrier wave based on the instantaneous amplitude of the message signal.
幅度模调器根据消息信号的瞬时幅度来调整载波波的幅度。
In QAM (Quadrature Amplitude Modulation), both amplitude and phase of the carrier are modulated to transmit information.
在正交幅度调制（QAM）中，载波的幅度和相位都被调制以传输信息。
Digital-to-analog converters often use pulse width modulation (PWM) as an efficient method of signal modulation.
数模转换器常使用脉宽调制作为有效的信号模调方法。
The phase modulator shifts the phase of the optical carrier according to the input electrical signal.
相位模调器根据输入的电信号改变光载波的相位。
The voltage-controlled oscillator in a phase-locked loop acts as a frequency modulator within the feedback path.
锁相环路中的压控振荡器在反馈路径中起到频率模调器的作用。
The liquid crystal display uses a spatial light modulator to control the passage of light through each pixel.
液晶显示器利用空间光调制器来控制通过每个像素的光线。