frequency run频率特性试验
frequencyn.频繁;频率
frequency coverage频率范围
frequency interval频率间隔
frequency analyses频率分析器
frequency variance频率方差
frequency quotient频数商
frequency frogging频率交叉,频率变换
frequency converte变频器
frequency accuracy频率准确度
frequency standard频率标准
frequency chirping频率啁啾声