运动学的

Using the powerful calculation capability of MATLAB for matrix,and adopting vector ring and vector chain equation,the paper calculates and imitates the characteristic of kinematics and kinetics about equivalent force model of plane machinery.

利用MATLAB软件对矩阵强大的计算能力，采用矢量环与矢量链方程对平面机构的等效力学模型的运动学特性和动力学特性进行计算仿真，主要针对机构的速度波动特性进行了仿真和分析。

Supposition of two vibrations with same frequency and direction, condition generated mechanical wave, dynamic equation of plane harmonic wave.

同方相同频率的两个简谐振动的合成；机械波产生的条件；平面简谐行波的运动学方程。

Week 4 Supposition of two vibrations with same frequency and direction, condition generated mechanical wave, dynamic equation of plane harmonic wave.

第4周 同方相同频率的两个简谐振动的合成；机械波产生的条件；平面简谐行波的运动学方程。

After contrasting and optimizing this paper gets a set of parameters. Then according to these parameters the paper sets up entity model, and after validating and analyzing with finite element it can save time of calculating. On the other hand, it can provide a good method of design of moldboard plow surface.

通过对这四个阶段中土垡的运动学和动力学分析研究，建立了犁体牵引阻力的数学模型；通过对比分析得到较优的一组参数，然后以该组参数为依据进行参数优化，最后以优化后的参数建立犁体实体模型，应用有限元进行分析，节省了计算时间和提高了计算效率，为今后犁体曲面设计提供了一种方法。

Should emphasize every nearly end linkapply the brake , make moment of momentum of human body give end link far withmore rational route transmission, improve the movement pace effectively, increase theresult of attacking .

旨在找出下劈技术的差异性和共同特征，总结出高质量完成这一动作的运动规律和技术特点，取得了影响下劈技术动作的运动学参数，为跆拳道教学和训练提供定量的数据和理论参考。

This paper introduces the source of yellow light,and also discuss the effection with time of yellow light .

介绍了电灯的由来，探讨了黄灯时间的长短对交通安全正负两方面的影，在应用力学和运动学原理的基础上，提出了一种计算黄灯时间的模型。

Supported by the National Natural Science Foundation, this dissertation mainly deals with bionics study on Thunniform swimmer, theoretical kinematics modeling and computer simulations, analyzes effects of elastic elements on propulsion efficiency, and experimentally studies a new type of underwater propulsor.

本文以国家自然科学基金项目"仿鱼鳍水下推进器的理论与实验研究"为背景，集中对鲹科加新月形尾鳍推进模式鱼类游动的仿生学研究、仿鱼水下推进器运动学建模与仿真、弹性组织在提高推进效率中的应用、及其相关的新型仿鱼水下推进器等方面进行理论与实验研究。

Kinematics model of the suspension be reduced to truss structure, but as each bar is absolutely rigid, hinge point is also considered to be only a pure rotation without any deformation of rubber parts, such results have a certain margin of error.

运动学模型中把悬架简化成杆系结构，而各个杆件看成是绝对刚性的，铰点处也认为是只有纯转动而无任何橡胶件的变形，这样所得的结果就有一定的误差。

On the basis of kinematics and geometry principle, a mathematical model for the crank rocker arm mechanism was established.

从运动学和几何学原理出发，建立了曲柄摇杆机构的数学模型，得出了工件中心点的瞬时速度和运动轨迹，并开发了相应的计算机动态仿真软件，以图形的形式显示了工件中心点运动轨迹曲线以及瞬时速度曲线。

This subject is a sub subject of the subsidy project of the national natural fund, the project is studied on kinematics principle and structure techniques of roller of arc spring tooth for collecting plastic film residue .

本课题是国家自然基金资助项目——弧型挑膜齿残膜清理滚筒的运动学原理及工艺结构研究的子课题，残膜捡拾滚筒是弧型齿残膜回收机的关键部件，本文针对弧型齿残膜捡拾滚筒在工作中存在的实际问题，结合试验进行了研究分析，提出了一些改进意见。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。