1.
A Multi-channel Time-frequency Comparison System Based on FPGA
基于FPGA的多通道时频比对系统研究
2.
Instantaneous frequency estimation of frequency modulation signals in low signal noise ratio
低信噪比情况下调频信号的瞬时频率估计
3.
Research about the Comparison between "Dong Bu Dong" and "Jing Chang";
时频副词“动不动”与“经常”对比研究
4.
Time permutation and phase rotation for OFDM peak-to-average power ratio reduction
利用时频二维处理降低OFDM系统峰均比
5.
Comparison between Harmonic Frequency Spectrum VSR and TSR
频谱谐波时效技术与热时效的比较研究
6.
image interference ratio
镜频抗拒比;镜频抗拒比;镜频抑制比;镜频抑制比
7.
The Relation and Its Application Between Time Interval Measurement and Phase Comparison in the Process of Time Comparison
时间比对中时间间隔测量与频率源比相的关系及其应用
8.
These can also be very useful when navigating time-based documents, such as video and audio.
它对于和时间有关的文档非常有用，比如视频和音频文档。
9.
The coach rotates her players frequently near the end of the game.
教练在比赛即将结束时频繁地轮换球员
10.
the coach rotates his players frequently near the end of the game.
教练在比赛即将结束时频 繁的轮换球员.
11.
Real-Time Bitstream-Based Video Watermarking Technology and Its Application;
基于比特流的实时视频水印技术及其应用
12.
Comparative Studies of the Modern Chinese Frequency Adverbs of “常常” and “往往”;
现代汉语表频时间副词“常常”与“往往”的比较研究
13.
COMPARISON OF ADAPTIVE TIME-FREQUENCY ANALYSIS METHODS FOR EARTHQUAKE WAVES
地震波的自适应时频分析方法对比研究
14.
Time-delay estimation of sinusoidal signals based on one-bit quantification
基于单比特量化的单频信号时延估计算法
15.
modulation frequency ratio
调制频率与载频之比
16.
Research shows short, frequent sessions are generally more effective than longer, infrequent sessions, because fatigue and other factors lead to inattention.
研究表明短时间、高频率的学习方式比长时间、低频率的学习方式更有效。
17.
I still struggle now and then about my perceived lack of time,but less than I used to.
现在我仍然偶尔会感到时间不够用，但比起以前频率少多了。
18.
High-speed analog-to-digital conversion chips can thus exploit hundreds of megahertz of RF spectrum simultaneously.
高速类比数位转换晶片因此能同时运用数亿赫兹的RF频谱。