Sommerfeld's wave expansion theory demonstrates that a spherical wave can be expanded as the superposition of plane simple harmonic waves.
索末菲关于波的展开理论证明，球面波可以展开为平面简谐波的叠加。
Through this research, a series of difficult technical problems on parameter optimization and on calculation of the content and loss of harmonic waves, etc. have been solved.
通过研究，系统解决了大容量干式励磁变压器参数优化、谐波含量及谐波损耗计算等技术难题。
Parallel APF suits mostly curb harmonic waves.
并联型APF大多适合于抑制电流源谐波。
The output of Amplifier has a filter, which can inhibit the out-off-band harmonic waves and unwanted emission component.
放大器的输出接有滤波器，可有效抑制带外谐波和无用发射分量。
This paper took whether adding the energy of harmonic waves into the DS data as the division standard to generate two groups.
在提取样本动态光谱时，以是否加入谐波分量为标准分成实验组和对照组。
Power Factor Correction (PFC) technique make input current waves sine, improve efficiency of the system and reduce harmonic waves.
功率因数校正技术对输入电流进行校正，提高设备利用率，减少谐波对电网的污染。
This article has explained its forming and harms and expounded in detail the importance of series reactors in the treatment of harmonic waves.
文章简述了谐波的形成及危害，并比较详细地论述了串联电抗器在谐波治理中的重要作用。
On this foundation , put forward a new method to distinguish CT saturation based on the characteristic of differential current harmonic waves.
文中分析了各种情况下的CT饱和及短路时的差流波形，提出了基于差流谐波波形特点的判别CT饱和的方案。
This thesis builds a simple mathematical model for the controllable principle, transient stability and harmonic waves of the DFIG, and analyses them.
本文对双馈发电机的控制机理、稳定性和谐波成分建立简单的数学模型，进行了一定的分析。
On harmonic waves filtering off, digital filter is widely applied, and faster filtering algorithm means better real time characteristic and higher reliability.
谐波滤除中数字滤波器应用越来越多，较快的滤波算法意味着实时性好、可靠性高。
Power Supply System is often placed with shunt compensation capacitors and the upper harmonic waves in the distribution network have much influence on the capacity.
供配电系统通常接有并联补偿电容器，配电网中的高次谐波对电容的影响很大。
The output waves of traditional resonant DC-Link inverter have too much low frequency harmonic waves which affect the output performance, because it can only use DPM control.
由于传统谐振直流环节逆变器只能采用离散脉冲调制方式，输出波形中含有丰富的低次谐波，严重影响输出性能。
A distorted sine signal is simulated in this paper, and the harmonic analysis is carried out through the above measure, revealing the state of its basic wave and harmonic waves.
该系统模拟生成一畸变正弦信号，并运用该系统实现谐波的在线监测分析，得出其基波与谐波的情况。
A distorted sine signal is simulated in the system, and the on-line harmonic monitoring is carried out through this system, revealing the state of its basic wave and harmonic waves.
该系统模拟生成一畸变正弦信号，并运用该系统实现谐波的在线监测分析，得出其基波与谐波的情况。
Topographic relief is treated approximately as a wave consisted of harmonic waves of different cycles in this paper, and the effect of topographic relief on velocity analysis is discussed.
从地形起伏周期和地震排列长度关系的角度分析了地形起伏对速度分析结果的影响。
Topographic relief is treated approximately as a wave consisted of harmonic waves of different cycles in this paper, and the effect of topographic relief on velocity analysis is discussed.
从地形起伏周期和地震排列长度关系的角度分析了地形起伏对速度分析结果的影响。
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