查询词典 difference frequency

The maxima of low-temperature internal friction peaks plot a symmetrical peak-like curve at logarithmic frequency spectrum and the peak-like curve shifts toward high frequencies with the increase of heating rate, indicating that phase transition relaxation time decreases; the maxima of high-temperature internal friction peaks exhibit a linear relation to the reciprocal frequencies, and as the heating rate increases its slope rises, which implies that the heating rate drives the normal movement of phase interface further in low-frequency measurements.

低温内耗峰峰值与对数频率呈现峰形函数关系，随升温速率的增加，频率峰向高频方向移动，相变弛豫时间减小；高温内耗峰峰值与倒数频率成直线关系，随升温速率的增加，直线斜率变大，表明低频测量时升温速率对相界面法向运动的驱动作用更强。

The paper studies UFLS with several times accelerating shedding load function, analyzes dynamic frequency characteristic of power system during UFLS, derives the formula which is served as setting rate of frequency change for criterion of accelerating shedding load, and designs the logical diagram expressing UFLS operation.

研究了同时依据频率和频率变化率两个变量，在每个频率定值处设置加速减载功能的低频减载方案。文中详细分析了低频减载过程中频率的动态特性，推导了作为加速减载判据的频率变化率整定值的计算公式。

In order to realize the miniaturized frequency selective surface, a new miniaturized-element frequency-selective surface is presented by bending the edge of square loop aperture into the inner space to lengthen the resonant length.

摘 要：为了实现频率选择表面单元的小型化，通过在方环单元的内部空间中弯曲方环边长来增加谐振长度，设计了一种新型小型化频率选择表面。

The detailed investigation of the connection of primary frequency regulation with the low-frequency oscillations was done .in this paper .

本文对电力系统的一次调频和低频振荡的相互作用问题进行了深入研究。

At the same time,so as to choose different fusion rules aiming at low-frequency and high-frequency coefficients for different circumstances.

同时，针对低频和高频系数不同的情况选择不同的融合规则。

The eye is less sensitive to high-frequency information than low-frequency information.

人眼对高频信息的敏感性要低于对低频信息。

A 2-D coded GA is proposed to design the matching network composed of lumped components. The topology and component parameters of the matching network are optimized simultaneously. The network optimized by employing the 2-D coded GA shows better frequency response compared with the network synthesis method and the real frequency method. The thesis also employs the GAs to microwave measurement.

为了解决宽带匹配网络的设计问题，提出了一种二维结构的编码方案，采用这种形式的编码同时对网络结构和元件参数进行优化，成功地设计出性能优良的匹配网络，通过与综合法、实频法的设计结果相比较，表明遗传算法设计出的匹配网络性能更优，特别是在寻找新的网络拓扑结构方面，遗传算法具有更大的优势。

This paper aims at the analysis and computation of double machine power systems frequency dynamics and provides the characteristics of double machine power systems frequency dynamics .

本文首先对双机系统频率动态过程进行了理论分析，给出了双机系统频率动态过程的特点。

Finally designs has the tonality control circuit the audio frequency amplification electric circuit to have very well chooses the frequency function, with pronunciation magnifying power.

最后设计出来的带有音调控制电路的音频放大电路具有很好的选频功能，和语音放大能力。

In this process, the supply frequency of the motor is not changed; it is always identical to the relevant mains frequency.

在此过程中，电机的供应频率是不变的。它总是与相关的主频率相同。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。