Does Chinese traditional medicine weigh a building renown what? Main effect?

The dynamic voltage restorer is designed as unilateral energy flow equipment which can compensate continuous voltage sag or swell resulted from the voltage drop of power cable.

动态电压恢复器采用单向馈能电路结构，可以在能量单向流动的情况下，实现对因电缆压降而产生的电压暂降或暂升的持续补偿。

互联网摘选

Based on the obtained magnitude characteristic of the signal and the morphologic gradient of the differential signal, five kinds of dynamic power quality disturbances, i.e., voltage sag, voltage swell, voltage interruption, transient pulse and oscillation, can be classified.

基于已得到的幅值特性和形态梯度可对五种动态电能质量扰动（电压暂降、暂升、中断、暂态脉冲和振荡）进行分类。

互联网摘选

By applying it in power quality detection, simulation trials are done for voltage sag, voltage swell and voltage interruption including the harmonics in different order and so forth, respectively, in noise and color noise disturbance environments, the results show the effectiveness of the method.

将其应用在电能质量扰动检测中，对电压暂降、电压暂升、电压间断及各次谐波在白噪声和色噪声环境下进行仿真试验，结果证明了该方法是十分有效的。

互联网摘选

However, the coming substantive power electronic equipments, impactive and nonlinear loads in power system lead to a series of power quality problems, such as voltage sag, voltage swell, voltage fluctuation, harmonics, voltage notch, impulse, oscillation transient and so on.

但随之而来的各种电力电子设备、冲击性与非线性负荷的大量投入，导致供电质量出现电压暂降、电压暂升、电压波动、谐波、电压缺口、脉冲与振荡暂态干扰等一系列电能质量问题。

互联网摘选

As we know, many power quality problems are caused by the voltage sags. Three-phase voltage sag simulator is used as a tool to evaluate the effects of momentary voltage sag and voltage short interruptions on industrial load.

众所周知，很多电能质量问题是由电压暂降引起的，三相电压暂降故障模拟器被用来作为一种评估电源电压暂降和电压短时中断对用电设备影响的试验装置。

互联网摘选

Simulation results also show that the three-phase voltage sag simulator can be used to evaluate the effects of momentary voltage sag and short interruptions not only on industrial passive load, but also on industrial active load.

仿真结果还表明这种三相电压暂降故障模拟器不仅可以用于评估瞬间电源电压暂降和电压短时中断对工业无源负荷的影响，还可以用于评估工业有源负荷的影响，例如太阳能并网装置等。

互联网摘选

A power quality problem can be defined: problem due to frequency, voltage regulation, voltage dips, flicker, transients, harmonics, and power factor and 3 phase imbalance.

电能质量问题被定义为：频率、电压所导致的问题，如电压跌落、电压闪变、电压短时中断、谐波、功率因数以及三相不平衡度。

互联网摘选

However, according to statistics most of power problems in power system are voltage dynamic sag and swell during the time from several milliseconds to five hundred milliseconds. But it is not voltage complete interruption.

而根据统计电力系统中供电问题大部分都是时间在几毫秒到500毫秒的电压动态跌落与升高，而不是电压完全中断。

互联网摘选

First, the wavelet coefficients of basic frequency are extracted to identify the short duration disturbance like voltage sag, swell and interruption.

先提取基波频段所在的小波系数将电压凹陷、电压凸起和电压中断分别检测出来；

互联网摘选

" Voltage sags and brief interruptions are by far the most expensive power problem for most industrial automation users in the developed world," reports Dr.

对于发达国家大多数的工业自动化用户来说，到目前为止，电压骤降和瞬时中断是代价最为昂贵的电源问题。

互联网摘选

If there is an interruption due to a voltage drop whilst programming, malfunctions in the instrument cluster cannot be ruled out.

如果在编程时由于电压降低而造成中断，则无法避免组合仪表出现故障。

provided by jukuu

For these sensitive devices only several cycles of Voltage sig and interruption are the main reason for the sensitive devices working abnormal.

但对于这些设备，仅几个周期的电压暂降和中断都将造成严重的后果，电压暂降是这些敏感设备不能正常工作的主要原因。

互联网摘选

Among those several representative short-term power quality disturbances are introduced particularly, and their characteristics are analyzed. They are: voltage sag, voltage swell and voltage interruption;

其中，对几种有代表性的短时电能质量扰动作了详尽而细致的描述，分析了它们的扰动特征，分别是：电压凹陷、电压凸起和电压中断；

互联网摘选

By use of alternative transients program ( ATP) five typical power quality disturbance signals, such as voltage oscillation, voltage interruption etc.

采用交流暂态仿真软件对5种典型的电能质量扰动信号如电压振荡、电压中断等进行仿真和分类识别。

互联网摘选

She coloured very slightly.

她脸稍有一点红.

互联网摘选

The question was unexpected ; she colored very slightly.

问题 出乎意料 .她脸稍有一点红.

词典精选例句

In the dissertation, researching the defects that Peak-to-Average Ratio ( PAR) is high and influenced greatly by frequency offset and time-varying channel in OFDM system, providing the effective settlement measures.

论文针对OFDM技术峰值平均功率比高以及易受频率偏差和时变信道的影响的缺点进行研究，给出有效的解决措施。

互联网摘选

Secondly, the basic theory of OFDM system and the system model are introduced, and the errors of timing synchronization, frequency synchronization and the sampling rate synchronization are discussed in detail.

其次介绍了OFDM技术的基本原理，给出了OFDM信号的特性以及一般OFDM系统的构成模型，仔细分析了三种同步误差（定时偏差、载波频率偏差、采样时钟频偏）对OFDM解调性能的影响。

互联网摘选

In the simulation, constellation, Bit-Error-Rate ( BER) and Signal-to-Noise Ratio ( SNR) performance degradation are analyzed taking into account the effect of sampling frequency offset.

经过仿真，从星座图、误码率（Bit-Error-Rate，BER）及信噪比（Signal-to-Noise Ratio，SNR）损失等角度对采样频率偏差的影响做了揭示和验证。

互联网摘选

So, in an OFDM system, finding the symbol timing, the carrier frequency offset, and the sampling rate offset the receiver is important in the recovery of the signal.

因此，在OFDM系统接收机中，定时的确定、载波频率偏差和采样频率偏差的纠正是信号恢复的关键。

互联网摘选