谐振

The scheme can effectively restrict operation over-voltage, and has the function of the lightning arrester, and serves as a reference for other projects.

电力系统中普遍存在过电压情况，根据引发原因主要有以下几种：谐振过电压、操作过电压和雷电过电压。

The status of lightning protection and problems, especially low insulation level of lines, lack of direct lightning protection measures, misemploy of lightning arrester and imperfect earth are discussed. Associative action of lightning overvoltage may be considered as the main ...

在此基础上提出了综合防雷措施(包括规范避雷器的安装维护、改善避雷器和杆塔接地、使用塔顶避雷针、使用自动消弧装置降低配电网建弧率、限制雷电流过后的弧光接地过电压和铁磁谐振过电压等)，以提高配电网耐雷水平和供电可靠性。

Relationship between the linear acceleration and the resonant frequency of the sensing unit was deduced and the finite element method was used to simulate the correctness of the theory.

通过理论计算，得出了线加速度与敏感元件谐振频率之间的关系，并通过有限元软件对其进行了仿真计算。

The influence of groove number of gratings and the optical thickness of the resonant reflector upon linewidth are discussed.

得到光栅照射条纹数和谐振反射器光学厚度对线宽的影响，理论和实验符合。

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。

For the voltage space vector close loop control-based strategy, based on the proportional-plus-integral-based control scheme, a new control scheme composed of an adaptive resonant controller and a PI controller is proposed in the paper, by which the stator voltage waving is almost elimited, and a very well control performance is achieved for stator voltages, naturally, the softly cut-in control is realized.

针对基于空间电压矢量闭环控制的这一投切方案，在PI调节器控制的基础上提出了自适应谐振调节器与PI调节器并行控制的控制策略，有效抑制了定子电压幅值的波动，使定子电压具有较好的控制响应，进而实现了双馈风力发电机零电流切入电网的目的。

Switching power amplifier of magnetic bearing worked in hard switching. To overcome drawbacks of large loss of switching and current harmonic distortion, a parallel resonant DC link soft-switching power amplifier was adopted in this paper.

为克服磁悬浮轴承开关功率放大器工作在硬开关状态时存在的开关损耗和电流纹波干扰严重的缺点，提出一种磁悬浮轴承并联谐振直流环节的软开关功率放大器电路。

In Magneto hydrodynamicsgeneration a conductive gas is directed through a magnetic field AND a potential is developed.

谐振腔中的强磁场是激发起固体中电子和原子核的自旋和轨道运动的理想环境。

Study on Mode Calculation of Transmission Matrix for Laser Resonator.

基于传输矩阵的激光谐振腔模式计算。

By employing the harmonic expansion and matrix inversion, we calculate the polarization of the medium and analyze the interference effect of the coherent field is investigated.

本文采用密度矩阵元的谐振展开方法，理论上研究了处于环型腔内的二能级原子系统的光学双稳和多稳现象的相干控制。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷