frequencyn.频繁;频率
Frequency Standard Primary主要频率标准
frequency response testing频率响应检验
frequency control governor变频调速器
frequency domain equalizer频域均衡器
frequency respond function频率响应函数
frequency spectrum analyse频谱分析
frequency-type telemeter频率式遥测计
frequency modulation pulse调频脉冲信号
frequency-response curve[电] 频率响应曲线