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The simulated results indicate that the properties of the chaotic dynamic system are sensitive to the driven frequency. A threshold value of amplitude exists for the appearance of chaos phase. The system is insensitive to the dissipative magnetic force.

数值模拟结果表明：混沌实验摆系统动力学性质灵敏地依赖于策动频率值；系统策动振幅必须大于一定阈值是混沌相出现的必要条件；磁阻尼参数对系统混沌相动力学状态影响不明显。

The paper systemetically investigates the hydrolic properties of the level swirling inner dissipator and the factors which influence on it by model test on the one hand, on the numerical simulation hand, the paper has simulated the swirling flow field in the level discharge tunnel with Anisotropic k-ε Turbulence Model by programming, in addition with Second-moment Renolds Stress Model by utilizing CFX software.

本文一方面通过模型试验的方法系统地研究了水平旋流内消能工流场的水力特性和影响因素；另一方面选取各向异性的K-ε模型和雷诺应力模型，分别用编程的方式和利用CFX软件数值模拟水平旋流泄洪洞内流场。

The HeⅠ 10830 profiles of the flare are relatively broad and can not be simulated by Doppler broadening mechanism with a uniform flare model atmosphere.

该耀斑的HeⅠ 10830谱线线翼相对较宽，不能用均匀耀斑模型的纯Doppler加宽机制解释。

With the above method, flows in transitional region around cylinder, sphere double cone and Apollo capsule are simulated. The aerodynamic and flow characteristics are analyzed.

最后，采用本文发展的方法，对绕圆柱、球双锥和Apollo飞船的过渡区域流动进行了数值模拟，并对其气动特性、流场特征和流动现象进行了分析。

The current response of a generator/collector system based on a double-barrel micropipet was simulated by boundary element method , from which the collection efficiency for different pipets with different geometry was calculated.

初步探讨了双通道微米管作为产生/收集装置所涉及的理论及其传质过程，应用边界元法数值拟合了收集效率与管形之间的关系，通过加速离子转移实验对拟合结果进行了验证。

By means of the K-ε turbulence model and finite element method, the flow of the fluid in the valve and the piston during a cycle of pumping is simulated and calculated. The motion law of the crude oil in the valve passage and concentric annulus in the upstroke and downstroke is analyzed.

针对杆式泵泵简内的流体流动问题，采用湍流模型的K-ε两方程模型和有限元方法，对在一个抽油循环中阀与活塞在几个特定的位置的流体流动进行了建模与计算，具体分析了处于阀道内和同心环状空间中的原油在上下冲程的运动规律。

The lifetime of electrons, the drift velocity and diffusion are simulated and investigated, with the help of Garfield.

1引言TpC(Time projeetion Chamber，时间投影室)的结构和原理是由D.R。

In the laboratory, we simulated the measurement of the drill hole in oil pipes and gave the result.

介绍了利用磁通法测量射孔的基本原理，并在实验室模拟测量了套管上的射孔，给出了测量图。

Based on the systematic analyses of the applications and developments of step motor, the driving technique of step motor are analyzed in this paper, and upon these statements, a mathematical model of VR step motor is built. With this model, the coil current of step motor with chopping driver and the non-loaded starting frequency are simulated for the base of designing of step motor servo system.

本文在系统分析了步进电机应用和发展的基础上，对步进电机的驱动技术作了详尽的论述，建立了三相反应式步进电动机的数学模型，并利用该模型对斩波驱动的步进电机绕组电流及空载运行的启动频率等进行了仿真，为步进电机驱动系统的设计提供了依据。

The dynamic contact of the drop hammer with the laminate was simulated by geometric contact model provided by ABAQUS/Explicit code.

在冲击动态接触过程的处理上，则采用了ABAQUS中主从面几何接触模型，直接利用冲击物的初始速度条件和几何边界条件，将落锤冲击与复合板的变形和破坏进行联立求解。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。