查询词典 motion

In order to reduce the computational complexity of motion estimation and improve the accuracy, a fast motion estimation algorithm based on low frequency sub-image is proposed.

为了减少运动估计的计算复杂度并提高其搜索性能，提出了一种基于低频子图的运动估计算法。

The apparatus for converting side-to-side to rotational motion for a workpiece includes a spring assembly with a movable base mounting element which is driven in a slightly arcuate reciprocal side-to-side motion and a fixed mounting element spaced apart from the base element and mounted in the appliance so that it does not rotate or move in operation of the apparatus.

一种将工作件的侧向运动转换为旋转运动的装置，包括弹性组件，带有作微小弧线往复侧向移动的可移动的基体固定件，和与基体件间隔开的固定的固定件，其固定在器具上在器具操作时不会转动或移动。

The stopper (41) includes a distal portion (62) and a proximal portion (61) separated by a spring element (63) and configured to compress when fluid is being driven through the passageway by motion of the plunger (37) and to continue to drive fluid through the passageway after motion of the plunger (37) has stopped.

止动器(41)包括由弹簧元件(63)分离的远侧部分(62)和近侧部分(61)，并设置成当流体通过柱塞(37)的运动而通过通道排出时进行压缩，且在柱塞(37)的运动停止后继续推动流体通过通道。

By compared with standard Brownian motion, the fractional dimension number of path of practical liquid molecular motion is analyzed theoretically on the basis of fractal theory.

运用分子动力学模拟方法，模拟了84K恒温液氩系统中分子的运动过程，统计了不同空间观测尺度及时间观测尺度下分子运动轨迹的分维数。

Hurdle race runs is technical very strong project, it asks the student must have a variety of motion capacity, games master should study advanced theory and research positive result in time, reasonable arrangement motion measures the method that learns to use science, the method with accurate effective alternative and step will have teacher and student.

跨栏跑是一项技术性很强的项目，它要求学生必须具备多种运动能力，体育教师要及时学习先进的理论和探究成果，学会用科学的方法合理布置运动量，准确选择有效的方法和手段来进行教学。

Descartes and Gassendi were the first to insist that inertial motion must be rectilinear motion and that bodies move in circles or curves must be constrained by some external cause.

笛卡儿和加森迪首先坚持惯性运动是直线运动，在圆或曲线上的运动必被某些外因所限制）Such bodies， Descartes

For the timelike surfaces with constant positive Gaussian curvature (K=1) in R〓, we construct the correspondence between R〓 and sl (2, R), and deduce the fundamental equations for a special choice of the velocity of motion of time-like surfaces in asymptotic coordinates under suitable conditions, meanwhile, we give the B〓cklund transformation and one soliton solution of the evolution equations, then in terms of a gauge transformation we obtain the explict expression of the motion of surfaces.

对于三维Minkowski空间R〓中具有正常高斯曲率（K=1）的类时曲面，取定特定速度，在以渐近线作为坐标曲线的情况下，曲面运动满足两个基本方程，即sinh-Gordon方程和θ随时间演化的方程（其中θ表示两条渐近线之间的夹角），同时给出两个基本方程的B〓cklund变换和单孤子解，并通过规范变换给出相应的正常高斯曲率曲面的显式表达式。

While carrying out simulative program design for hobbing machining,the most difficult point is the description and modelling on the relationship between the cutter and gear blank both in space and in motion,especially the modelling of motion relation between cutter and gear blank in case there exists factors of error.

在进行滚齿的切削仿真程序设计中，其中最大的难点是对刀具和轮坯的空间关系和运动关系的描述和建模，尤其是存在误差因素时对刀具和轮坯之间运动关系的建模。

Moreover, for the treelike system with prescribed motion and the non-treelike system with closed-loop, the generalized coordinates aren't independent completely. Only the dynamical equations of the system and the constrain equations resulting from the prescribed motion and the closed-loop are combined to form DAEs, it can be solved.

另外，对于有指定运动的树系统或带有闭环的非树系统，系统的广义坐标是不完全独立的，系统的动力学方程要与指定运动或系统切断所附加的约束方程一起组成微分--代数方程组才能求解。

The two kinds of symmetries in holonomic and non-holonom-ic mechanical systems,i.e.symmetries of differential equations of motion(ab-breviated as SDEM)and symmetries of Noether-type,and interrela-tions among all kinds of symmetries are investigated.The necessary and suffi-cient conditions of SNT to be SDEM are found out.It is pointed out thatSDEM have distinct geometric properties which are equivalent to the geodesiccharacteristic of differential equations of motion and geodesic deviation.

文中研究了完整与非完整力学系统的两类对称性，即运动微分方程的对称性和Noether型对称性，以及各种对称性之间的相互关系，确定了Noether型对称性为运动微分方程对称性的充分必要条件，并指出运动微分方程的对称性具有明确的几何性质，即它等价于运动微分方程的测地性质以及测地偏离性质。

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