查询词典 motion

Matrices, Vector and Vector Calculus, Newtonian Mechanics-single Particle, Oscillations, Nonlinear Oscillations and Chaos, Gravitation, Some Methods in the Calculus of Variations, Hamilton's Principles Lagrangian and Hamiltonian Dynamics, Central-Force Motion, Dynamics of a System of Particles, Motion in a Noninertia Reference Frame, Dynamics of Rigid Body.

矩阵和向量的计算、单一质点的牛顿力学、线性与非线性的振动运动、重力、微积分上的变分法介绍、哈密顿原理、拉氏及哈氏力学、连心力下的运动、质点系的运动力学、在非惯性坐标中的运动、刚体的运动。

Planar motion also requires that axes of all prismatic pairs and all revolute axes be normal to the plane motion.

平面运动需要所有的棱形副的轴和转动副的轴都垂直于运动平面。

He used the methods of calculus to solve the problem of planetary motion, the shape of the surface of a rotating fluid, the oblateness of the earth, the motion of a weight sliding on a cycloid, and many other problems discussed in his Principia Mathematica .

在其他的工作，他开发的一系列扩展的功能，包括分数，不合理的权力，显然，他理解的原则，泰勒级数。他没有公布所有这些发现，并在这个时候无穷小方法仍然被视为违规。

The scale analysis on planetary scale motion in the tropical atmosphere shows that the equilibrium between the pressure gradient force and Coriolis force in the meridional direction is easily established, which is known as the zonally semi-geostrophic motion.

对热带大气行星尺度运动所做的尺度分析和物理分析表明：热带大气的行星尺度运动在y方向容易实现气压梯度力与Coriolis力的平衡，它称为纬圈的半地转运动。

The scale analysis on planetary scale motion in the tropical atmosphere shows that the equilibrium between the pressure gradient force and Coriolis force in the meridional direction is easily established, which is known as the zonally semi-geostrophic motion The semi-geostrophic adaptation process in which the inertial gravity waves play an important part is relatively quick The evolution process after the semi-geostrophic adaptation process is slow and controlled by the Kelvin waves and long Rossby waves

对热带大气行星尺度运动所做的尺度分析和物理分析表明：热带大气的行星尺度运动在y方向容易实现气压梯度力与Coriolis力的平衡，它称为纬圈的半地转运动。半地转平衡的建立过程，也就是半地转适应过程相对是很短暂的，它不需要考虑f=β0y随y的变化，因而主要依靠惯性重力波为频散；而半地转平衡建立后的演变过程相对是很缓慢的，它主要受Kelvin波和Rossby波控制。

After introducing the basic knowledge of geometric algebra such as outer product,inner product and geometric product,this paper focused on the CGA description and computation with graphic reflection,rotation,translation,rigid body motion and screw motion,and gave the experimental demonstrations.

在简单介绍外积、内积和几何积等基本概念之后，重点论述了共形几何代数在图形反射、旋转、平移等变换和刚体运动、螺旋运动等方面的描述和计算方法，并给出了实验示例。

The straight line motion for the ant means the motion parallel to the invisible surface of the football.

直线运动的蚂蚁是指运动平行无形表面足球。

By using the basic method of virtual design and motion simulation of mechanical system based on Solid Works, virtual design of the robot of excavating tree stump was completed by synthetically using parametric and variable modeling technology and top-down design method. In case of the carrier was changed, the COSMOSMotion2006 was used to perform the motion simulation and optimized the parameter of the interface and the mechanical arm, by this way the useable of the new frameworks was confirmed, and in favor of reduce the exploiting cycle and exploiting cost.

通过使用SolidWorks软件的机械系统虚拟设计和运动仿真的基本方法，综合运用SolidWorks的参数化、变量化建模技术以及自上向下的设计思路，完成伐根清理机器人及其行走底盘的虚拟建模，并对由于行走底盘的改变而重新设计的接口和机械臂采用最新的COSMOSMotion2006软件进行了运动仿真和参数优化，以确定其机构可用性，有利于缩短产品的开发周期和减少开发费用。

There were very significant differences about the values of MP, MPF and AEMG among the motion muscles, but there was no significant difference about the singals of MF slope, MPF slope and AEMG slope. In patients group there were significant differences about the values of MF, AEMG, AEMG slope of motion limb between paretic side and non-paretic side. There were also significant differences about the values of MPF slope between paretic side of the patients and left side of the health. But there was no significant difference about other parameters in groups or among groups. Compared the activity muscles of four groups, there were significant difference about the values of AEMG and MPF among initiative muscles, antagonistic muscles and co-contraction muscles. There were very significant differences about the values of MF and MPF among co-contraction muscles, but there was no significant difference between initiative muscle and antagonistic muscle.

结果：两组各活动肢体间比较除AEMG斜率均值外MF、MPFAEMG及MF斜率及MPF斜率均值差异无显著性意义；各活动肌肉间比较MF、MPF、AEMG均值差异有显著性意义，而MF斜率、MPF斜率及AEMG斜率均值无显著性差异；活动肢体因素四个水平间比较除偏瘫组患侧与健侧之间的MF和AEMG、AEMG斜率均值和偏瘫组患侧与正常组左侧的MPF斜率均值有显著性差异外，其余参数在偏瘫组与正常组组内、组间的差异无显著性差异；活动肌肉因素4组肌肉间对比：主动肌与拮抗肌以及协同肌AEMG、MPF差异有显著性，协同肌之间MF、MPF差异有非常显著性，拮抗肌与协同肌差异无显著性。

In the second part the pectoral fin motion model of 2 degrees and 3 degrees of freedom is constructed. Also we use Unsteady Vortex Lattice Method to analyze the hydrodynamic performance of the pectoral fin motion.

第二部分建立刚性胸鳍二自由度、三自由度的运动模型，并用非定常涡格法计算和分析了胸鳍的水动力性能。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷