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For each impulse response waveform, FFT is applied in order to get their frequency characteristics.

最后对此平均频率特性实施IFFT以获取系统的脉冲响应。

While waveform criterion is presented based on the duration time of inceptive travelling wave.

而根据初始行波波头持续时间的长短可以构成波形判据。

The voltage induced in the pickup coil by this waveform is directly proportional to the rate of change of magnetic induction.

这种波形在拾波线圈中产生的电磁感应与磁感应变化率是成比例的。

Which can be used for direct observation of the input signal voltage waveform.

它可以用于直接观察输入信号的电压波形。

The waveform shape analysis based on the fluctuation law of the instantaneous angular speed of diesel engine under normal condition is an important monitoring method.

瞬时转速波形分析法是以柴油机正常态瞬时转速波动规律为判据的分析方法，因此，瞬时转速波动规律的仿真计算非常重要。

Oscilloscopes can observe the instantaneous voltage relative to time, display the shape of waveform and measure such parameters as frequency and phase.

示波器、信号源在当今仪器中是最通用的电子仪器，示波器可观察相对于时间的瞬时电压，它可显示波形的形状并可测量频率和相位等参数。

Mathematical morphology is developed from set theory and integral geometry, which is concerned with the shape of a signal waveform completely in the time domain rather than the domain frequency.

数学形态学是从集合论和积分几何学发展起来的，它完全在时域对信号的波形进行分析，不涉足频域分析。

Based on the 3-D acoustic equation and Tarantola′s generalized inversion theorem, taking into consideration the character of cross-well survey, a 2.5-D cross-well waveform tomography method in the frequency domain is presented here.

从频率域3-D声波波动方程出发，结合井间观测方式的特点，基于Tarantola广义反演理论，提出了一种频率域2.5-D井间波形层析成像方法。

The output waveform may be offset with respect to ground if the inverting input of the threshold detector, A1, is offset with respect to ground.

如果阈值检测器A1的反相输入端对地有一个偏置电压，那么输出波形也将带有一个对地的偏置。

The simulating result of signal waveform of point ionization of cylindrical drift chamber proves the similarity of Garfield program.

对圆柱形漂移管点电离信号波形的模拟结果证明了Garfield程序模拟的相似性。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。