谐振

Medium voltage network ; switching surge ; automatic arc quenching coil ; microcomputer relay protection ; resonance grounding ; low resistance grounding

中压电网；内部过电压；自动消弧线圈；微机接地保护；谐振接地；低电阻接地

Using the coil with low resistance and magnetic-core with high magnetic conductivity in the transformer and inductor to reduce the power loss and increase the efficiency.The elements and structures of some functional unit of power amplifier are analyzed.

然后从双端口网络的散射矩阵和功率传输增益函数入手，对常用的单、双谐振点匹配技术和原始实频法进行了论述，给出了原始实频法的计算机实现过程以及设计中的注意事项。

Traditionally, a damp resister is added in the input LC filter of VSRR to prevent resonance of the filter, which leads to extra cost and losses.

为抑制LC高通滤波器的谐振，在传统的设计中，需要加入阻尼电阻，由此增加了系统的成本，增大了系统的损耗。

In this article the properties of resonance cavity, operating condition, and radiation output of optical pumping laser are discussed.

本文讨论了光量子放大器的谐振腔、振荡过程和输出辐射的性质。

The primary factor that influences resonant characteristic comes down to loss. Also the optimum resonance amplitude condition has been obtained.

得出影响谐振特性的主要因素是损耗和耦合比，并推导出损耗和耦合系数之间的一个最佳匹配条件。

Besides of basic resonance condition, each adaptable function is given of investment, the capacity of reactive power compensation and the harmonic distortion of PPF.

在考虑滤波器基本谐振条件之外，还结合滤波器的成本、无功补偿和滤波效果的实际分别提出了各自的适应度函数。

In addition,it is found that the width of the corresponding waveguide of the rectangular cavity has an essential effect on the number of solutions for the resonance condition equation.

结果表明，随着横向尺寸的减小亚波长谐振条件的物理解数量将逐渐增多直至趋于无穷。

It is demonstrated that the system can exhibit unstable periodic 3 3 motion bifurcated from periodic 1 1 motion on the resonance condition, and the transition from subharmonic impacts to chaos is disscussed.

分析并证实了碰撞振动系统在此共振条件下可由稳定的周期 1 1振动分叉为不稳定的周期 3 3振动，讨论了亚谐振动向混沌运动的演化过程

It was in doubt for long time whether the static-excitation could be used to improve Subsynchronous Resonance condition in a certain power system with serial compensation.

汽轮发电机采用静止励磁方式使轴系缩短并减少了一个质块，是否可以去掉有危害性的扭振频率，而扩大串补系统中次同步谐振安全运行区范围的问题为工程技术人员所关心。

According to condition of phase resonance of fiber grating F-P cavity, the relationship between fiber Bragg grating period and cavity length for fiber grating F-P cavity has been deduced, which provide a basis for the manufacture of the F-P filter based on fiber Bragg grating.

根据光纤Bragg光栅F-P腔的相位谐振条件，推导了光纤光栅F-P腔的腔长与光纤Bragg光栅常数之间的关系，从而为研制基于光纤Bragg光栅的F-P滤波器提供了依据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。