super low intermediate-frequency超低中频
low-frequency stress低频应力;低频率应力
low-frequency electromagnetometer低频电磁仪
low-frequency oscillograph低频示波器
Low-frequency tags低频率标签;低频标签
low-frequency propagation[电子] 低频传播
low-frequency band低频带
low-frequency modulation[电子] 低频调制
As a result,the low-frequency microwave absorption of actual ferrite becomes much worse.
会使得实际铁氧体材料的低频吸波能力进一步减弱。
参考来源 - 低频锂锌铁氧体吸波材料及其在聚合物中分散技术的研究Wavelet-packet transform was not only used to analyze low-frequency signal, but also the high-frequency signal.
小波分析是处理非平稳信号非常有效的方法，而其中的小波包变换不仅分析低频信号，而且对高频信号也进行了细分分析。
参考来源 - 基于小波分析和集成神经网络的刀具磨损监测技术研究N（名词） a radio-frequency band or a frequency lying between 300 and 30 kilohertz 低频 ( abbr: LF)