electroacoustic transducer

例句：

1. 1.This device is used to convert electrical signals into acoustic waves.
   这种设备用于将电信号转换为声波。
2. 2. The electroacoustic transducer was designed to improve the quality of sound transmission.
   这种电声换能器被设计用来提高声音传输的质量。
3. 3.In the field of acoustics, electroacoustic transducers are widely used for signal amplification and filtering.
   在声学领域，电声换能器被广泛使用于信号放大和滤波。