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The three dimensional model on engine block combination structure of a piston engine is established by the ANSYS software,and the modal analysis is carried out in the case of constrained model.

采用ANSYS软件对某活塞发动机机体和缸盖的组合结构进行了约束模态的有限元分析，得到了机体组合结构的前20阶约束模态的固有频率及相应振型。

Firstly, a new quasi convex-concave extension definition is introduced to study general constrained optimization problem, which is much approximate function's shape than the interval extension.

首先，对一般约束优化问题，引入一新的概念，即拟凸-凹扩张，它比区间扩张能更好地逼近函数的形状。

The main purpose of this article is to work over and analyse dynamic specialties of the plane four bar mechanism especially crank and rocker mechanism and brace cake mechanism in the dynamic and constrained system contained with mechanical and hydraulic integration, and dynamic specialties of the plane four bar mechanism in the system made of mechanical and hydraulic integration can carry out and be easily computed by the software MATLAB to have a simulation.

本文的主要目的是研究分析机械系统和液压系统综合动态约束系统下，对机械系统单元部分选取的平面四连杆机构，尤其是曲柄摇杆机构和曲柄滑块机构的动态特性，并能通过MATLAB软件实现对机液综合机构学理论中的平面四杆机构的动态特性计算及仿真研究。

The main contents include the kinematic and dynamic characteristics of floating body and concept about large body; the kinematic and dynamic conditions and governing equations for constrained floating body; illumination of simple harmonic by decomposition into diffraction and radiation; introduction of relevant effect forces; the formula of velocity potential in waters with constant depth; the scattering by a vertical cylinder with circular cross section.

简述浮体的运动及动力特征、大尺度物体的概念；受约束浮体的运动学及动力学条件及其控制方程；通过分解为绕射和辐射问题讲解简谐运动及有关的作用力；等水深地形上速度势的表达式；铅垂圆柱产生的散射。

Founded in 1984, registered and approved by State Civil Ministry, CECA is a self-constrained, non-profit social entity.

中国节能协会成立于1989年，是国内唯一一家经民政部批准的节能行业的一级社团组织。

In the 1970s and 1980s chartists had modest success in predicting currency markets because, one theory says, the strong role of central banks and treasuries in currency markets constrained the variables so that they could be described in relatively simple linear equations.

在二十世纪七十年代和八十年代，这些图表分析员们在货币市场的预测方面有了一点成功，这是因为，按照一种理论的说法，中央银行和财政部在货币市场中的强势角色约束了各种变量，这样一来，就可以用一种相对简单的线性方程来描述整个市场的表现。

The goal of this project is to study the mSUGRA constrained MSSM phenomenology at the future LHC and the next generation linear colliders.

本项目针对未来的大型强子对撞机LHC，下一代直线对撞机实验中，在mSUGRA的参数约束下进行超对称模型现象学研究。

Finally; the numerical simulate and ANSYS do qualitative analysis certification. The result of analysis, free damping layer is great effetely than constrained damping layer on restrain vibration.

最后；再以数值模拟与ANSYS软体作定性验证分析，分析结果贴覆阻尼与夹芯阻尼对抑制振动效果较佳。

Whereas growth in stock trading is constrained by the number of firms listed—not to mention regulations such as Sarbanes-Oxley—derivatives are limited only by the capacity of financial eggheads to concoct new contracts.

而股票的交量受上市公司数量的限制，更不用提诸如萨-奥法案之类的监管限制。而衍生品只受限于金融狂想家们编造新合约的能力。

Usher greeted me with a vivacious warmth which had much in it, I at first thought, of an overdone cordiality—of the constrained effort of the ennuye man of the world

厄谢尔热情活泼地向我打招呼，我起初认为这里边很有些过分热情的味道——一个厌世者的勉强做作。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。