查询词典 converse motion

Methods: 12 fresh frozen shank-foot specimens from young adults were observed. The tibia was fixed rigidly. The talus and navicular were marked. We exerted different load on the forefoot for keeping it in different motion patterns and measured the three-dimensional coordinates of the marked points on these bones. The relative 3D motion range of the talonavicular joint was calculated. The characteristics of the talonavicular joint and the forefoot and their relationship were analyzed.

采用12例新鲜青壮年小腿足标本，牢固地固定胫骨，标记距骨和足舟骨，分别对足前部加载不同的负荷，使前足处于特定的不同运动状态，用三维数字化仪测量标记点的三维坐标值，计算距舟关节的相对三维运动值，分析距舟关节和前足的运动范围及两者间的关系。

Newton's first law of motion declares that a force is not needed to keep an object in motion.

伽利略提出一个运动的物体最终停下来是由于一种叫摩擦力的力的作用。

The gas flow is determined by local average Navier-Stokes equation, the motion of individual particle is obtained by solving Newton's second law of motion, particles collisions are taken into account.

气相流动通过求解局部平均Navier-Stokes方程获得，通过求解牛顿第二定律得到颗粒的运动，同时考虑颗粒之间的碰撞。

Based on the nonholonomic constraint arising from rolling contact and the discrete motion nature of stepper linear motors, the motion model of the robot is established.

结合实例进行了运动分析和轨迹规划仿真，表明这种运动分析模型是正确的，并且简化了球形机器人的驱动装置，降低了能耗。

Central-force Motion, Dynamics of a System of Particles, Dynamics of Rigid Body, Coupled Oscillations, Nonlinear Oscillations, Motion in a Noninertial Reference Frame, Continuous Systems.

力学 (0，3)/应用力学（0，3）中心力下的运动、多粒子系统动力学、刚体动力学、耦合振动、非线性振动、非惯性参考座标系中的运动、连续系统。

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。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。