空间运动

In the year of 1954 French scientist Maurice Allais found an unexplained phenomenon: in observing total solar eclipse, Allais found that a pendulum swing plane suddenly changed the direction of motion, that is, when the Earth, the sun and the moon are in a straight line, the law of motion in space will be changed.

在观测日全食时，阿莱发现一只摆的摆动平面突然改变了运动方向，即当地球与太阳、月球在同一条直线上时，会以某种方式改变摆在空间的运动规律。

Methods\ A group of equations are obtained on the basis of rigid body dynamics and analytic geometry.

应用刚体动力学原理，在给定坐标系下建立智能雷飞行运动方程，通过空间解析几何方法获得智能雷扫描运动方程。

In the functionally graded elastic half-space and the functionally graded covered layer, the motion control equations for the antiplane shear wave are solved, the analytical solutions for displacement and stress are obtained, and with these analytical solutions, the dispersion equation of Love wave is obtained.

对功能梯度弹性半空间和功能梯度覆层的反平面剪切波的运动控制方程进行了求解，给出了半空间和覆盖层的位移、应力解析解，给出了Love波在该解析解下的频散方程。

Considering complicated conditions of the coastal dynamic environment, sediment dynamics, and together with the immature sediment itself, the predicted results will be somewhat limited if only with numerical model. So, in order to obtain microcosmic quantitative assessment and macroscopically understanding, numerical model is combined with field observations in the thesis. Firstly, the tidal current, SSC distribution, benthal deposited materials were basically analyzed by field observations. Then, the tidal current, SSC distribution, and the erosion and accumulation of the seabed were simulated with the numerical model of ECOMSED.

但由于海岸动力环境多变，泥沙运动复杂，加之泥沙问题本身的复杂性，如仅用数学模型，其预测结果将受到一定的限制，故本文采用实测调查与数学模型计算相结合的方法，宏观把握，微观量化，在掌握岚山港西突堤工程所在海域潮流、悬沙量分布、表层底质沉积物类型及特点基本态势的基础上，紧扣开发工程可能引起潮流场变化，分析工程后悬沙量、海底冲淤变化及其空间分布，进而建立潮流作用下的泥沙输运数学模型，首先比较好地模拟目前岚山港西突堤工程附近海域的潮流场和悬沙场，然后预测海湾沿岸可能引起的冲淤强度变化和冲淤区域的空间分布。

By metaphorically invoking the photographic terminology in the spirit of Bergsonian / Deleuzian time-movement interpretation as inspiration, the exhibition Timelapse in which a dozen artists from both Switzerland and China will participate, attempts to examine the fundamental constituent of digital media: the concept of time and its embodiment in space, its evocation of passage and memory, its movement of differentiation and its state of representation in diverse formal grammars to reveal the social implications of the fast in the disguise of the slow, the multiplicity in temporality and disparity in spatiality, both psychologically and geographically, stirring up a desire to scrutinize the nuances and ramifications in regards to the construct of cultural being in the disparate framework of time in distance and space in locality and the potential collapse of such time-space duality.

本次展览以柏格森以及德卢兹（ Deleuze，均为法国哲学家）有关时间－运动的解释为契机，含蓄地缓引"延时"这一摄影术语，在瑞士和中国两国艺术家的参与中，试图检验数字媒体的根本构成因数，及时间的概念以及其在空间中的体现，其对于过程和记忆的启示，其运动所产生的差异，以及其在运用形式语言时所呈现的不同表象，从而揭示被缓慢所遮掩的亟速之社会内蕴，其在时空中之心理与地理间的多样化和差异性，激起我们对于细察在不同的时空概念的框架下文化的构建，以及对于这种时空二元性之崩溃的可能性的欲念。

The methods of trajectory planning and trajectory generating are analyzed both in joint coordinates space and Cartesian coordinates space based on kinematics of robot.

在机械手运动学和动力学的基础上，讨论在关节空间和笛卡儿空间中机器人运动的轨迹规划和轨迹生成方法。

The trajectory plan of welding robot is made for the purpose of realizing the predefined track by using the merits of joint space method and Cartesian space method. The realtime simulation is given.

为使机器人实现预期的轨迹运动，结合关节空间法和直角坐标空间法两种方法的优点对焊接机器人的轨迹进行规划，并给出实用的计算机仿真结果。

The algorithm GS to solve the problem of inverse dynamics based on the optimal theory is proposed, by using the numerical methods of Gill and shooting target, the optimal joint driven torques are obtained With the smooth joint trajectory motion, a fast and stable inverse dynamics method is proposed, it provides a new effective way to control the flexible manipulator The trajectory planning in the joint space and Cartesian coordinates is especially discussed In terms of kinematics of space flexible link manipulators, a sequential integration method for inverse dynamic analysis of flexible manipulators is developed The concrete results of simulations tested and verified the validity of proposed methods, and some valuable conclusions are achieved.

提出了求解基于最优理论的柔性臂逆动力学问题的GS法(Gill—Shooting method)，得到了柔性臂关节的最优驱动力矩；提出了基于光滑关节运动轨迹的柔性臂逆动力学的快速稳定方法，为柔性臂控制提供了一条新的途径；探讨了关节空间和直角坐标空间柔性臂的轨迹规划问题；研究并完善了结合柔性臂运动学的顺序积分的逆动力学方法。通过具体实例的仿真研究，验证了所提出的柔性臂逆动力学方法的有效性，得出了一些很有价值的结论。

The designers, in an effort to be human-oriented and take green as the dominant factor, integrate sights with activity spaces, preserve a place where man and nature can communicate with each other congenially, and provide green spaces of sport, recreation and body building.

设计力求以人为本、以绿为主，景观与活动空间结合，保留一处人与自然交融的场所，为周边居民提供运动、消闲、健身的绿色空间。

Local organizations' disposure of spatial development undergoes a gradual change from "giving up" to recovering in this process.And agglomeration-diffusion movements formed by positive and negative effects of industrial agglomeration keep changing rural spatial structure of PRD,make idiovariations of rural space of PRD.

地方组织的空间开发主导权在这一过程中也经历了从"主动丧失"到逐步恢复，再到完全掌控的变化过程，而产业集聚的正负效应综合形成的集聚—扩散运动，不断改变着珠三角农村空间结构，使珠三角农村空间发生异变。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。