频率

Signal recovered from the samples will not contain the high frequency component of the original signal and will display a false low frequency signal.

以低于信号中最高频率两倍的频率进行信号取样时出现的一种效应，即当由取样状态还原时，还原后的信号将不再含有原来信号中的高频成分，并将显示出虚假的低频信号。

The optimal stimulating frequency, Po, fatigability and time-dependent recovery of intermittent tetanic contraction were not altered in unloaded EDL compared with control.

对照组大鼠EDL的最适刺激频率为120 Hz，悬吊1、2与4周组EDL的最适刺激频率、疲劳性以及疲劳后恢复过程均未发生改变。

The optimal stimulating frequency, P_, fatigability and time-dependent recovery of intermittent tetanic contraction were not altered in unloaded EDL compared with control.

对照组大鼠EDL的最适刺激频率为120 Hz，悬吊1、2与4周组EDL的最适刺激频率、疲劳性以及疲劳后恢复过程均未发生改变。

The present study was performed to observe the time course and features of intermittent tetanic contractile function changes in soleus and extensor digitorum longus muscles of tail-suspended rats. The optimal stimulating frequency, fatigability and time-dependent recovery after fatigue were measured in isolated muscle strips.

为观察模拟失重对大鼠比目鱼肌(soleus， SOL)与趾长伸肌(extensor digitorum longus， EDL)间断强直收缩功能的影响，以及对刺激频率的调节作用，采用离体骨骼肌条灌流技术，观测其产生强直收缩最大张力的最适刺激频率、疲劳性与疲劳后恢复过程。

A method of time field analysis in continuous system is adopted to study the output characteristic and the frequency response of switch type capacitor filter.

为了研究开关式电容滤波器的输出特性和频率响应，采用了连续系统时域分析方法，建立了滤波器的输出特性模型和频率响应模型，并进行了仿真。

Filter is a frequency selective circuit, it has to distinguish between the different input signal frequency components.

滤波器是一种具有频率选择性的电路，它具有区分输入信号的各种不同频率成分的功能。

Then the formulae of defect mode frequency,and the quality factor are obtained with the first order approximation.

研究结果表明：一级近似法能很好地解释中心频率附近介质层厚对缺陷模频率的影响。

In this article, method of Fixed Point Frequency Analysis was used to extract Fundamental Frequency ( F0) as well as establish the normalized Liner Polynomial Tone Model.

该文利用固定点频率分析提取基音频率(0)建立归一化线性多项式声调模型。

A power ultrasonic supply ,which can realize zero phase difference frequency tracing and fixedness of output power,is presented in this paper.

本文介绍了一种具有无相差频率自动跟踪和输出功率恒定功能的功率超声电源，此电源采用集成锁相环来实现无相差自动频率跟踪，采用 PWM方式控制 BUCK电路的斩波，达到恒功率及功率可调的目的。

Holding the input energy and actuator volume fixedness, the active frequency has no effect on jet velocity. But the recovery stage time shorten with the increase of active frequency. So, the choice of active frequency is under consider of the temperature resistance for actuator.

在输入能量和腔体体积不变时，激发频率的提高对合成射流的最大速度没有明显的影响，但缩短了腔体内气体的冷却时间，实验时对激发频率的控制首要考虑腔体的耐温能力。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。