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- multi frequency sender 多频发送器
- 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
- By this storm, we vaguely saw, in the disaster frequency sent behind the gloomy curtain scenery, could not be suppressed the light and the hope soon spurted thinly. 透过这风暴，我们依稀看到了，在灾难频发阴暗幕景背后，不可遏抑的光明与希望即将喷薄而出。
- The data that you also can fasten noise the relation between number and gain and frequency sends a digitlization plotter through the systematic interface bus line of 8970B. 你也能够将噪声系数和增益与频率之间的关系的数据经由过程8970B的系统接口总线送给一台数字化绘图仪。
- Dual Tone Multi Frequency detection [DTMF detection] 双音调多频探测
- Dual Tone Multi Frequency generation [DTMF generation] 双音调多频放射
- multi frequency test system for automobile shock absorber 多频减振器试验台
- MSP430F serial 16 bit microprosessor is selected to achieve several functions: controlling of the system, radio frequency sending of data, radio frequency receiving of data, and abnormal uncase alarm. 选用TI公司的MSP430F系列的16位微控制器，实现系统控制、射频数据发送、射频数据接收、串口通讯等功能。
- Among them, the population inflation causes the overdevelopment natural resource, the excessive felling forest, the excess reclamation land is the primary cause which the sand storm frequency sends. 其中，人口膨胀导致的过度开发自然资源、过量砍伐森林、过度开垦土地是沙尘暴频发的主要原因。
- dual tone multi frequence (DTMF) 双音多频
- Parametric faults detecting with multi frequency test applied in ATE ATE环境下的多频测试参数故障检测
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- Turn the mode dial to select multi exposure mode. 把模式盘转到多重曝光模式。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
