感应式变频机
Induction frequency converter
干频法
dry bulb temperature frequency method
概率频率函数
probability frequency function
改进修改频率调制
mixed signal simulationmodified modified frequency modulation
傅里叶频谱能量比
Fourier spectrum energy ratio
副载波频调变
Sub-carrier frequency modulation
复时频分布
generalized complex-time-frequency distribution
感应式换频机
induction type frequency converter
复频响应
complex frequency response
复频清洗
complex-frequency washing
复频聚焦超声换能器
Bi-frequency ultrasonic focused transducer