屏幕放大器（Screen magnifier）为视力低下的人放大屏幕上的信息。
Screen magnifiers that enlarge information on the screen for people with low vision.
基于C8051F330的温度信息采集器，由处理器、模拟前端运算放大器和串口通讯等组成。
The temperature information acquisition unit based on C8051F330 is composed of processor, analog front-end operational amplifier, serial port communications and so on.
在发送方向，收发信机向功率放大器提供射频信号，功率放大器根据给定调制类型的增益和斜坡信息对信号进行放大。
In the transmit direction, the transceiver provides RF signals to the power amplifier, which amplifies the signals based on gain and ramp information for a given modulation type.
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