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- Method Modulation transfer function (MTF) was used to analyze the spatial frequency transfer characteristics of CT and MRI. 调制传输函数可对线性影像系统的频率传输特性进行描述。
- Usually three wave-mixing researches are based on plane wave or Gauss wave, so study of aberrated second harmonic generation is new and important. It could be very helpful to understand and make good use of the Frequency Transfer of Nonlinear Optics. 这说明利用非线性光学频率变换方法拓宽波前传感器件的响应波段是很难实现的,但是,通常三波相互作用过程的研究均是建立在平面波和理想高斯光束之上,因此我们对于位相畸变倍频过程的研究是非线性光学领域一个重要而有意义的新课题,它有助于人们更加深入理解非线性光学效应,为进一步合理利用之奠定了理论和实验的基础。
- high frequency transfer standard 方频电压传递标准
- geodetic GPS time and frequency transfer receiver 大地型GPS时频传递接收机
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A High Frequency Transfer Function Model of Potential Transformer in GIS 气体绝缘变电站内电压互感器高频传输函数模型的建立
- A unit of frequency equal to one cycle per second. 赫兹频率的单位,等于每秒一周
- Analysis of Frequency transfer characteristic of AM/FM screened image 调幅/调频网点图像的频率传递特性分析
- Study on the Application of Time and Frequency Transfer with GPS Common-view GPS共视时间频率传递应用研究
- 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。
- A filter whose transfer function is matched with the frequency spectrum function of input signal. 其传递函数与输入信号的频谱函数相匹配的一种滤波器。
- 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。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- The Computational Model of Two-way Time and Frequency Transfer in the Non-rotating Geocenthric Reference System 地心非旋转坐标系中的卫星双向时间比对计算模型
- frequency transfering 变频转工频
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- I am majored in audio frequency amplifier. 我主修音频放大器。