谐振的

During the testing process, the circuit use the on-off power supply's pull and push structure as prototype, gaining a additional LC in series resonance circuit, which is also a opposite sharp structure. In the same frequency,and in the work state of work voltage, receiving even more high efficiency and output power.

该电路在实验过程中以开关电源推挽式结构为原型，改进得到一个附加了LC串联谐振回路的反激式结构，在同等工作频率、工作电压的状态下，得到了比推挽式结构更高的效率和输出功率。

According to the computational stability analysis conducted to the linear term time difference scheme in simple harmonic motion equation, one new semi-implicit integration scheme also is designed. By adopting a kind of revised time-explicitdifference scheme to these linear terms still included in spectral model governing equations, this defect of spectral model only partly used in semi-implicit integrating scheme, can be overcome to some degree.

以简谐振动方程中线性项时间差分格式对其计算稳定性影响为理论依据，本文设计了一种新谱模式半隐式时间积分方案，此方案通过对一般谱模式求解框架中那些隐含的线性项采用了一种显式修正的差分格式，可有效克服其国际谱模式半隐式时间求积方案实质上只是部分应用了半隐式差分格式的问题。

In Chapter 4, a laser cavity which can separate the optic paths of the two modes in a two-mode laser is proposed, which makes it possible to stochastically modulate the two mode loss parameters in different ways.

在第4章中我们利用一种光学谐振腔分开双模激光中两个模的光路，从而使对两个模的损失参数进行不同的随机调制成为可能。

The main work of this paper is to study and develop a charging power supply for energy storage capacitor in pulsed power system. Firstly, analyze and study the series-resonant converter from the perspective of the minimum component stress.

本论文的主要工作是研究和开发了一种用于电容储能式脉冲功率系统前级电容充电的电源，首先从最小应力的角度对串联谐振变换器进行了分析和研究。

The EDFL is structured by insertion of three different short passive subring cav it ies, which serve as mode filters, into the main cav it y, and it is combined w it h a fiber Bragg grating, the MRCs resonator can make SLM lasing.

这种激光器通过在主环形腔中插入充当模式滤波器的三个长度不等的无源次级环形腔，并结合腔内光纤布拉格光栅形成多环形腔掺铒光纤激光器结构，多环形谐振腔可保证激光器的单纵模输出。

Special requirements not included or differemt to that in the firsr generation products,such as the syntonic frequency,coated glue,additional paper circle,colors,etc.

特殊要求——与第一代产品要求不同或原先没有该要求的，如纸盆的谐振频率等等不同，复合盆的涂胶、加纸圈、颜色等不同要求。

The general syntonic frequency of the serial geophones is between 8Hz and 40Hz.

不论在淤泥、沼泽地或埋石松散的沙地里，都能提供良好的地表耦合，该系列检波器的通用谐振频率从8Hz至40Hz，适宜单只或组合串使用。

Plasma is a dispersive medium and its equivalent refractive index is related to the frequency of the incident electromagnatic wave and the plasma frequency, so it is feasible to shift the syntonic frequency of plasma defect by changing the plasma parameters, which behaves as a tunable filter.

据等离子体的强色散特性，其等效折射率与电磁波频率及等离子体频率等参数有关，因而可以通过改变等离子参数，使一维微波光子晶体缺陷层的谐振频率发生偏移，实现微波光子晶体的可调谐滤波特性。

The mutual connection that analyses Bessel beam of light and Bessel-Gauss beam of light theoretically reachs distinction, beam of light of Bessel of numeric imitate ideal and Bessel-Gauss beam of light are in the radial light intensity of aleatoric plane distributings, and the influence that smooth waist radius and syntonic antrum antrum grow pair of output Bessel-Gauss beam of light.

梗概： 理论分析Bessel光束和Bessel-Gauss光束的相互联系及区别，数值模拟理想Bessel光束和Bessel-Gauss光束在任意平面的径向光强分布，以及光腰半径和谐振腔腔长对输出Bessel-Gauss光束的影响。

And modified lead-based perovskites with larger tolerance factor, have less anharmonic coefficient with low frequency polar mode.

改性铅基钙钛矿因为在极化模低频化的同时有更小的非谐性系数，所以能在更大许容因子的情况下获得近零谐振频率温度系数，同时保持高介电常数。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。