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- multi frequency oscillator 多频振荡器
- VFO? Variable Frequency Oscillator? 可变频率振荡器，变频振荡器?
- VFO? Voice Frequency Oscillator? 音频振荡器?
- You can select single, dual or multi frequency among Germany (DCF, 77.5kHz), US (WWVB, 60kHz), Japan(JJY40 &NJJY60), or UK(MSF 60kHz) . 全球独创铜字面电波表。根据不同国家的频率，生产单频，双频，多频的机芯（DCF，JJY，NJJY，MSF，WWVB）。
- multi frequency energy harvesting 多频能量采集
- multi frequency signaling system 多频信令系统
- Dual Tone Multi Frequency(DTMF) signal DTMF信号
- intermediate frequency oscillator 中频振荡器
- twice horizontal frequency oscillator 双行频振荡器
- Quartz-Crystal Frequency Oscillator 石英晶体频率振荡器
- quartz crystal frequency oscillator 石英晶体频率振荡器
- In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system. 在音响设备中出现的振荡频率极低的低频振荡，常因放大系统的正反馈回路引起。
- Universal Radio Frequency Oscillator 通用无线电频率振荡器
- twice-horizontal frequency oscillator 水平双频振荡器
- Dual Tone Multi Frequency detection [DTMF detection] 双音调多频探测
- dielectric dot frequency oscillator 介质点频振荡器
- A combined power system adaptive stabilized apparatus GPSS is designed to suppress low frequency oscillation and to improve power system stability. 为了抑制电力系统因负阻尼而产生的低频振荡;提高电力系统稳定性;设计了一种组合电力系统自适应稳定器GPSS(以下简称自适应稳定器GPSS).
- Dual Tone Multi Frequency generation [DTMF generation] 双音调多频放射
- The influence of inertia constant (H_D) of induction motor on low frequency oscillation (LFO) was studied. 研究感应电动机惯性时间常数HD对电力系统低频振荡(LFO)的影响.
- dual tone multi frequence (DTMF) 双音多频
