transformer amplifier

例句：

1. 1.This transformer amplifier is used to amplify the signal from the sensor.
   这个变压器放大器用于放大传感器的信号。
2. 2. The transformer amplifier was designed to improve the quality of audio signals.
   变压器放大器被设计用来提高音频信号的质量。
3. 3. The transformer amplifier is essential for transmitting high-frequency signals over long distances.
   变压器放大器对于传输高频信号在长距离上是必要的。