Introduction and analysis of methods of measuring the group delay of frequency - translating devices 频率变换器件群时延测量方法的探讨与分析
Liquid pumps - pump units with frequency inverters - guarantee and compatibility tests ; german version en 12483 : 1999 液体泵.带频率变换器的泵组件.担保和相容性试验
For more information about electric motors , frequency changer or slip ring motors please call the company woelf 在生产商和服务商woelf出色的网页上可以找到价廉物美的频率变换器,电动机,集电环(绕线)型转子电动机、绕线转子异步电动机。
Grading standard of quelity for frequency converter used in cabled distribution systems primarily intended for sound and television signals operating between 30mhz and 1ghz 30mhz 1ghz声音和电视信号的电缆分配系统频率变换器质量分等标准
频率: frequency; rate电压 频率变换器: voltage frequency transducer类比-频率变换器: analog-to-frequency converter变频器频率变换器: frequency transformer参量频率变换器: parametric frequency converter电压频率变换器: vfc voltage to frequency converter; voltage frequency converter; voltage-to-frequency converter发射频率变换器: tra mitting frequency converter; transmitting frequency converter模拟频率变换器: analog to frequency converter频率变换器电路: converter circuit数码频率变换器: number to frequency converter水银频率变换器: mercury frequency changer整流子频率变换器: commutator frequency changer频率变换器,周波变换器: frequency converter电压脉冲重复频率变换器: voltage to pulse rate converter; voltage-to-pulse rate converter功率变换器: power converter; power inverter; power transformer频率变换: channel rotation; frequency change; frequency conversion; frequency tra lation; frequency transformation; frequency translation; frequency transposition; frogging频率变换,变频: frequency translation大功率变换器: power converter双斜率变换器: dual slope converter参数频率变换: parametric frequency conversion工作频率变换: operating frequency change量子频率变换: quantum frequency conversion频率变换电路: frequency-conversion circuit频率变换调制: frequency shift keying (fsk)频率变换键控: keying frequency shift; keying, frequency shift (fsk)