计算的

The main idea behind these methods is to take advantage of the known state variables and the theorem of addition for linear system without building up a new Jacobian matrix again. But the equivalent computation of algebraic equation must be performed to get state variables corrections. Accordingly, the speed required to model the contingencies is not fast enough to meet the demand of fast contingency analysis under emergency condition, which is proved by several well-known blackouts caused by flow transferring.

但是，这些算法中的大多数是在实时潮流计算的基础上，利用其中间结果和线性系统的叠加原理，直接求解出事故后的状态变量，都需要通过网络方程求解整个网络状态变量的增量，计算量较大，难于满足紧急状态下快速安全性评估的实时性要求，国内外一系列因静态潮流问题引起的大停电事故就是例证。

The unique advantage of this halfanalytical numerical method is that the analytical process of Conformal Mapping can transform an irregular area into a regular one such as a rectangle. Therefore, the discretization error of numerical methods on the boundary can be avoided, and the numerical algorithm can be implemented more easily, with the computing efficiency improved.

这种保角变换的半解析数值方法的突出优点是：利用前期的保角变换解析处理将不规则的场域转化为规则的矩形域，从而避免了纯数值技术对复杂边界的离散化误差，降低了后期数值计算的算法复杂度，并提高了计算效率。

The heat conduction model of the PE fuel with the surface melting and pyrolyzing is developed for the H2O2-PE hybrid rocket motor. Combining with the energy fluxes balance above fuel surface, the simulation and calculation of transient heat conduction of the PE fuel with liquid layer while melting and pyrolyzing are considered by use of the moving coordinates.

建立了PE燃料的熔化、热解、导热模型，应用动坐标系，结合燃料表面热环境，对具有液体层的PE燃料的熔化、热解和内部瞬态导热过程进行了模拟计算，计算的PE燃料退移速率与国外同类试验的测量结果符合较好。

Results of numerical simulations were validated by measuring the piston displacement, cylinder pressure, discharge valve displacement. The calculated displacement waveform of the discharge valve is accordant with the experimental one, which demonstrates that the valve model is reasonable.

通过分析比较不同工况下排气阀位移的计算值与实验值，可以看到阀片位移波形的变化趋势是一致的，位移峰值相互对应，说明模拟计算的结果基本正确，建立的气阀模型是合理的。

In many reasons of causing cracks, only a few studies are reported about the influence of concrete shrinkage and creep on cracks for its computational complexity. If any, most calculations are only based on the two-dimensioned finite element model. So it's significant that how to analyze the spatial effect of concrete shrinkage and creep by utilizing large software.

在众多的开裂原因中，混凝土收缩徐变的影响，由于计算的复杂性，这方面的研究报道很少，而且大部分的计算也只是基于二维杆系有限元模型，因而如何利用大型软件进行考虑混凝土收缩徐变的空间效应分析，十分有意义。

Through the in-depth analysis of sentence and the sentence similarity computing method based on the keywords feature, the semantic feature and the syntactic feature, we propose a new method based on the multi-features fusion.

本文通过对句子的深入分析，在分别对基于词特征，词义特征以及句法特征的句子相似度计算的基础上，提出一种基于多特征融合的句子相似度的计算方法。

Now there are many kinds of implantation products with various brands. Most of them are serial ones, which cannot meet the needs of the persons with skeleton deformity or abnormal injured skeleton parts. And because of the long time of design and manufacturing, economical efficiency and other reasons, customized orthopaedics products applied in clinic are limited. It's urgent to reduce the time of design and manufacturing on the base of costcutting, so the parallel computing will bring its power into play.

目前，骨科植入物产品种类繁多，各种品牌层出不穷，系列化产品占据了市场的绝大部分份额，而往往有相当部分病人由于骨骼畸形或伤及少见的骨骼生理部位，系列化产品很难满足要求，又由于因人而异的骨科产品受其设计与加工的时间、精力、财力等许多方面制约而变得应用寥寥，在降低成本的基础上如何减少设计与加工周期将变得十分迫切，并行计算将在此处有一席用武之地；另外计算机辅助手术也将在这领域逐步推广，尤其在术中阶段，系统对并行计算的需求尤为迫切。

The obtained results are in good agreement with the experimental observations,this shows clearly that the spectrum levels,which do not exist for the standardized crystal-field theory,are due to the dynamic Jahn-Teller effect in those crystals. Some theoretical Jahn-Teller effect splittings presented,which are not found in exising experiments,are in need of further theoretical and experimental studies.

理论计算的结果与实验符合得很好，说明了在该物质中用经典晶体场理论无法解释的红外谱线，的确是由Fe2 和Cr2 离子与半导体晶格之间的动态阳-泰勒效应所产生；并且理论计算还预示存在一些新的谱线有待实验和理论工作者的进一步验证。

Now, of course, at the core of lots of supercomputing has been the idea of modeling things computationally and doing that at a finer and finer level of detail.

现在，当然，在许多高速计算的核心是靠模切事物的主意计算的和在一件比较好的和比较好水平的细节做那。

The fiber are successfully used in the practical noise control. The model of aerodynamics in the course of the intermittence exhaust is simplified into exhaust problem of two stage series cylinder. Digital calculation program which can really imitate aerodynamics characteristics in the exhaust process is established. A simple formula which can be used for calculating the volume of the silencer expansion chamber is established.

作者指出间歇性排气过程的空气动力模型可简化为两级气缸串联的排气问题，编制的数值计算程序真实地模拟了排气过程中的空气动力学特性，建立了消声器膨胀消声室体积大小计算的表达式。

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％。