压电扬声器
piezoelectric speakers
piezoelectric loudspeaker
piezo loudspeaker
测量用变压器电压检验
potential transformer voltage check
传声器声压灵敏度
pressure sensitivity of microphone
传声器声压频率响应
pressure frequency response of microphone
低压电器电触头
low voltage apparatus electrical contacts
电容器式电压互感器
condenser type potential transformer
电子式电压电流互感器
electronic current and voltage transformer
施加电压电压测试
voltage source voltage measurement
数字式电压电阻两用仪
digital voltage-resistance meter
压电电压常数
Piezoelectric voltage constant
piezoelectric voltage coefficient
压电电压反馈
piezoelectric voltage feedback
压电式压力传感器
piezoelectricity type pressure sensor
piezoelectric pressure transducer
piezoelectric pressure sensor