piezocoupler

例句：

1. 1.Piezoelectric materials are used in many applications, such as sensors and transducers.
   压电材料在许多应用中被使用，如传感器和转换器。
2. 2.The piezoelectric effect is a phenomenon whereby an electric charge can be generated when a material is subjected to mechanical stress.
   压电效应是指当材料受到机械应力时，可以产生电荷的现象。
3. 3.In the field of acoustics, piezoelectric materials are used to create sound waves.
   在声学领域，压电材料用于产生声波。