参量

The fully inseparable bright tripartite entangled state was experimentally generated using the NOPA at deamplification and the linear optical system consisting of polarization beam splitters and half wave plates. The variances of the sum of the amplitude quadratures of the three obtained optical modes and the relative phase quadratures among them is respectively 3. 28dBm and 3. 18dBm below the corresponding Shot Noise Limit.

利用运转于参量反放大状态的NOPA和偏振分束棱镜及半波片，从实验上产生了完全不可分的明亮三组份纠缠态光场，所产生的纠缠态具有三模正交振幅分量和与相对正交位相分量差的起伏方差低于散粒噪声极限的特性。

For the first time, the author reformulates many results and physical parameters about the structure dynamic response into new dimensionless concise forms with response number, which could be used to study the corresponding structures in MAVs.

论文首次利用&响应数&将这些已有的实验和理论研究结果中诸多的物理参量统一表示为简洁的无量纲形式，以更好地运用于微型飞行器中的相应结构。

Based on the theory of fractional Fourier transform and one of its very important parameter, fractional order, the relationship between FRT and Fresnel diffraction are deduced and analyzed. The fractional Fourier transform hologram reconstructed with the Lohmann Ⅰ FRT system is presented and its computer simulation and digital reconstruction are realized. It is shown that FRT is an ideal tool to describe Fresnel diffraction,and the FRTH can record information on the object and the system at the same time,which extends the application areas of FRT and holography.

基于分数傅里叶变换理论并以分数阶这一重要参量为纽带，推导和分析了分数傅里叶变换与菲涅耳衍射之间的关系；提出了基于罗曼I型分数傅里叶变换系统的分数傅里叶变换全息图，并实现了其计算机生成及数字重现；研究表明，分数傅里叶变换是描述菲涅耳衍射的理想工具，分数傅里叶变换全息图可以同时记录物体和系统的信息，开拓了分数傅里叶变换和全息术的应用领域。

So we can propose some principles of decreasing or preventing natural disasters as fol...

在此基础上，本文进一步提出了防灾或减灾的如下四条原则措施：在人—自然系统中，(1)减弱某些非线性机制；(2)隔离某些相互作用的要素及其子环路；(3)控制某些关键性参量的变化，(4)提高某些重要变量的临界值。

With twodimensional fluid model, the effects of the cell structure parameters on the firing voltage of surface-discharge PDP are studied.

应用两维流体模型研究了表面放电型AC-PDP单元结构参量对PDP着火电压的影响。

Then the experimental setup for the focusing performance is described, and the focusing performance of the PMMA compound high-energy X-ray lens is tested under the inradiation of the 8 keV monochromatic X-ray.

最后给出8 keV单色X射线辐射下，PMMA材料X射线组合透镜的聚焦性能的测试结果，对实际测试结果进行了分析和讨论，得出结论，焦距等参量与理论计算结果基本吻合。

The most common exceptions to the use of the absolute magnitude convention are temperature and LOGIC levels.

绝对参量公约中最常见的例外就是温度和逻辑电平。

Research on Cerenkov second harmonic generation and parametric amplification in the Cerenkov-idler configuration As we all know, the phase matching condition is critical in second harmonic generation in waveguides.

切伦科夫二次倍频及切伦科夫型参量放大的研究在光波导中进行倍频，满足相位匹配条件是至关重要的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。