查询词典 cavity

The invention discloses an optical differentiator based on a silicon-based annular cavity resonator, which belongs to the field of optical fiber communication technology.

一种基于硅基环形谐振腔的光微分器，属于光纤通信技术领域。

The applied rules for MT method are introduced,and the formula is derived for the calculation of resonant frequencies of a cavity resonator.

通过数学分析，导出用多极理论分析谐振腔本征值问题的计算公式。

The experiment results show that the device is appropriate for the micro-laser In order to optimize the design of the resonator cavity in the high-pressure discharge gas laser, an Eigenvector Method for calculation of optical resonator modes and beam propagation is brought forward.

为了更好地设计高气压放电激光器的谐振腔结构，提出了一种新颖的模拟光腔模式及光束传输的特征向量法。

A new approach,the multipole theory method,is briefly described for the computation of resonant frequencies of a cavity resonator.

本文给出用多极理论分析谐振腔本征值问题，以及用多极理论分析谐振腔本征值问题的使用规则。

It is shown that while using these arrangements quite a large change in the resonant length and Q-factor of the cavity resonator will be obtained ,when a dielectric resonator is inserted into the evanescent guide.

这两种安排都能使置入介质谐振器前后的谐振腔产生相当大的谐振长度和Q因子的变化，从而能获得准确的介质谐振器无载Q因子和介电常数。

Therefore,based on microwave highQ cavity resonator,a new technique of calculating the quality factor through theoretical derivation is presented,which allows flexibility in choice of measurement point.This method solves the problem of coupling system influence,which can cause larger error in measuring.

为此，针对微波高Q谐振腔，给出了一种测量其品质因数的新方法，该方法可以根据实测的谐振曲线灵活选取测量点，有效解决了传统方法中由于谐振腔受外电路影响导致测量误差较大的问题。

Then the reflected shock wave produced by the parabolic reflector in resonator cavity frequently penetrated the flame, which led to continuous flame excitation.

共振腔抛物面的不同形状引起激波聚焦位置的变化，会影响激波和火焰的相互作用，使起爆提前或推迟，甚至不起爆。

Microwave measurement ; Dielectric resonator ; Cavity resonator ; Evanescent waveguide

微波测量；介质谐振器；谐振腔；截止波导

In order to improve the operation frequency, the self-suck resonator pulse detonation engine was founded, the ignition principle of the new engine use the method of shock focus autooscillation, so, it possess high ignition and operation frequency, many experts have taken experiment and numerical simulation. However, the physical processes in the resonator cavity are very complicate,the reliable theory haven't set up by now, require the further study.

为了提高脉冲爆震发动机的工作频率，自吸气共振型脉冲爆震发动机模型被提出，该新型发动机点火原理采用激波谐振聚焦点火方式，具有很高的点火及工作频率，许多专家对此进行了实验研究和数值模拟，但由于谐振腔内的物理过程非常复杂，到目前为止没有一套可靠的理论，有待于进一步研究。

The methods of disturbance, spiral cylindrical cavity and stripline resonator were used respectively for measuring the permittivities for microwave dielectric substrates. The substrates are made from PTFE based fine ceramics, and errors of measurement have been analyzed.

采用微扰法、螺旋圆柱谐振法和带状线谐振法分别对聚四氟树脂复合精细电子陶瓷微波复合介质的复介电常数进行了测量与误差分析。

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％。