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- term frequency feature 词频特征
- Both short and long term frequency stabilities of the simultaneous oscillations are better than several parts in 10 10. 它可使同时振荡的双波长之频率稳定度不论短周期或长周期都优于10 -10。
- Secondly, to the nonstationarity of diesel engine noise, this paper focuses on the extraction of time frequency feature using wavelet scalogram. 其次针对噪声信号的非平稳性，研究基于小波尺度谱噪声分量的时频特征分析。
- According to the data of GPS time comparison published by the laboratories (USNO, TAP, CRL) and BIPM in the time bulletins the long term frequency stability in the GPS time comparison are calculated and analysed in this paper. 根据国际上一些实验室(USNO、TAO、CRL)和国际计量局(BIPM)在时间公报上公布的GPS时间比对数据;对其长期频率稳定度进行了计算分析;结果如下: 1.;GPS时间比对的长期频率稳定度不受地域的影响;不同地区和不同卫星的结果都有明显的相似性;
- For the sake of predicting the detection effect of differential operators,the frequency features of common operators are analyzed from the view point of frequency domain. 为了预测微分算子边缘提取能达到的效果,从频域角度出发,分析了边缘检测中常用微分算子的频谱特性。
- It is used in the measurement of ranging accuracy,maxmun and minimum ranges,pulse energy,pulse width,repetitive frequency features,beam divergence and optical axis stability of LRF. 主要检测测距机的距离准确性、最大及最小测程、脉冲能量、脉宽、重频特性、束散角及光轴稳定性等。
- Term Frequency and Inverse Documentation Frequency (TFIDF) TFIDF
- In the short term, the medicine may not be very effective. 从眼前来看，这药可能疗效不是很大。
- The autumn or winter term start in September. 秋季或冬季学期九月份开始。
- Are there any exams at the end of this term? 这个学期期末有考试吗？
- The second term commences in March. 第二学期自三月开始。
- We must aim for world peace in the long term. 我们要争取持久的世界和平。
- He tells us in no uncertain term not to come again. 他直截了当地告诉我们不要再来了。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- He selected an extensive reading course this term. 这个学期他选修了泛读课程。
- We hope to make great profit in the long term. 我们希望长期获利。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Feature:low dissipation factor at high frequency. 特征：高频率，低损耗;容量稳定;自愈性能佳，适合高阻 Recommended Application: Timing, tuned, Oscillator circuits;
- This term will begin on September 7th. 这个学期将于九月七号开始。
- Above term shall apply unless otherwise mention. 除非另有说明书，上述条件一概适用。
