常見例句雙語例句The feature of the mean frequency synthetic technique is theunstabillty of instant frequency and less error of mean frequency.平均頻率合成技術(shù)的特點是瞬時頻率不穩(wěn)定，而平均頻率的誤差很小。The relative waveforms, such as maximum frequency, mean frequency and bandwidth, were obtained using the short time Fourier analysis of those simulated signals.對這些仿真信號進行短時傅里葉分析，求出相應(yīng)的最大頻率、平均頻率和頻譜寬度等曲線。Meanwhile the vortex shift waveform is obtained from the estimated mean frequency waveform using a suitable low-pass filter. Then the vortex shedding frequency and amplitude can be calculated.用合適的濾波器可以從估計出的平均頻率曲線中得到渦流的波形，并且計算表征渦流的渦流經(jīng)過頻率和幅度特征參數(shù)。權(quán)威例句Everything else being equal (which never occurs), this would mean no increase in hurricane frequency and intensity.FORBES: Bringing Some Empirical Sense To All the Hurricane HypeBut what happened to Global Frequency may someday mean more than a pat on the back from Web dorks.FORBES: Magazine ArticleGarments are fitted with interactive screens and RFID (radio frequency identification) tags, which mean that customers can flash clothes in front of interactive screens to see how a handbag detail or raincoat lining is made.ECONOMIST: High-tech fashion 返回 mean frequency