对称

At present, asymmetrical AC and pulse with two polarities mode power supply is an important developing direction of the technology.

目前，采用不对称的交流或双向不对称脉冲工作模式的电源是微弧氧化技术的重要发展方向。

The preliminary result shows that we can find new potential symmetries for thescalar equation by different F and G.

初步研究结果表明对F和G取某些值后，该方法得到的对称是原方程新的势对称。

At the first stage the symmetrized matrix of nuclear cross relaxation rate is obtained from the regularized 2D NOESY peak intensity or symmetrized mixing coefficient matrix.

第一步采用规范化2D NOESY峰强度或对称化混合系数矩阵来计算对称化核交叉弛豫速率矩阵。

Taking the problems stated above into account, the schemes for preparation of entangled states, quantum teleportation and remote state preparation are mainly discussed in this dissertation. The main results are as follows:(1) A scheme is proposed for preparation of the symmetrical W state and two kinds of unsymmetrical W-class states via cavity QED system.

基于以上想法，本文着重对纠缠态的制备、量子隐形传态和量子远程态制备两种量子信息远程传输方式进行研究，主要研究成果如下：(1)提出在腔QED中实现n-体对称W态及两种非对称类-W态制备方案。

Chiral SalanCrX complexesa saturated version of SalenCr(ⅢX are designed,and in conjunction with an ionic quaternary ammonium salt or organic strong base can efficiently catalyze the asymmetric,regio-and stereoselective alternating copolymerization of CO_2 with rac-PO at mild conditions to afford isotactic-enriched polycarbonates with～95%head-to-tail linkages and moderate enantioselectivity.

本论文在Salen构型配体的基础上，设计合成了一系列手性Salan型铬配合物，并将其与季铵盐/有机强碱组成亲电-亲核双组分催化体系，在室温下可以有效的催化CO_2和环氧丙烷的不对称交替共聚反应，实现了CO_2和环氧丙烷的不对称交替共聚反应的区域和立体化学控制，得到95%的头尾连接单元和中等光学纯度(对映体过量值ee%≈70%)的全同结构的聚碳酸酯。

Insurance assessment organization came into being at the very beginning for the purpose of relieving contradictions in the settlement of claims resulted from asymmetric information in insurance market, which is a typical market of information asymmetry.

保险市场是典型的信息不对称市场，保险公估人最初就是为了缓解保险当事人在保险理赔活动中由于信息不对称而出现的矛盾而产生的。

In this paper, we study nonlinear perturbation analysis of mesoscale verticalcirculation and evolution equation by means of f plane, non-hydrostatic balance andfilter model. Outstanding nonlinear characteristic of mesoscale disturbance invertical direction, we obtain nonlinear symmetric disturbance equation anddisturbance amplitude s evolution equation by use of multi-scale and singularperturbation technique.

中文摘要：本文采用f平面、非静力平衡、滤声波模式，讨论了大气中尺度非线性动力学方程，通过尺度分析重点突出了扰动在垂直方向上的非线性特征，从而得到了对称扰动非线性方程，运用多重尺度方法和摄动分析讨论了对称扰动非线性重力惯性波的演化过程，得到非线性重力惯性波振幅演化服从广义的非线性Schrdinger方程。

The conclusion established some ways to improve the credit risk management such as optimize the national-owned enterprises and commercial banks operation structure; establish new relationship between banks and corporations; optimize bank's internal control system; balancing corporate financing ways, eliminate corporate over-dependency on bank's credit assets, and remove information asymmetric contributed by credit sales.

本文在分析和评述国内外银行信贷资产安全性相关理论的基础上，对银行信贷资产安全性与流动性、盈利性之间的关系、信贷资产安全性的概念、分类进行了界定和分析，在对影响商业银行信贷资产安全性共性因素和我国信贷资产安全性现状进行深入剖析的基础上，紧密结合中国银行业的实际，结合信息经济学、行为金融学的有关理论从产权制度、公司治理结构、融资行为、投资行为、内部控制等方面深入分析了借款企业行为、商业银行行为、政府行为及社会信用环境对信贷资产安全性的影响机理，特别是重点分析了信息不对称条件下商业银行信贷资产安全性生成机理，较系统、全面地论述了影响我国商业银行信贷资产安全性的特殊因素，并运用logistic等统计方法进行信贷资产安全性判别进行了实证研究，构建了我国商业银行信贷资产安全性判别模型，最后在此基础上提出了不断健全完善公司治理结构，树立市场化的新型银企关系；完善商业银行内部控制制度，强化内控执行机制；优化企业融资模式，降低企业对商业银行信贷资金的过度依赖；有效缓解商业银行信贷经营活动中面临的信息不对称程度等加强商业银行信贷资产安全性管理和控制的措施与建议。

To solve the first problem, a mathematical method is proposed to determine whether all of the pivots of a multi-angulated beam are within its corresponding plate.

为了解决第一个问题，本文提出了一种数学的方法来保证所有角梁的剪式铰节点都位于相应的板单元之下，并且不管板单元的边界是什么形状，这种方法还可以被拓展到对称结构和非对称结构当中。

No Third Party Keyholder, 2048 to 4096 bit Asymmetric and 256 bit Symmetric Key Encryption, Automatic Key and Contact Management.

没有第三党keyholder ， 2048年至4096位非对称和256位对称密钥加密，自动的关键和联系人管理。

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％。