piezo-electric crystal circuit

例句：

1. 1.The piezo-electric crystals are used to detect vibrations in the ground.
   压电晶体用于检测地面的振动。
2. 2.The piezo-electric crystals were developed by a team of scientists.
   压电晶体是由一个科学家团队开发的。
3. 3. The piezo-electric crystals have been used in many applications, including medical and industrial equipment.
   压电晶体被广泛应用于许多领域，包括医疗设备和工业设备。