relative motion

The footpad, as the landing buffer mechanism would contact with the lunar surface first, as well as the interaction force and relative motion being generated. After that the buffer would be used to absorb the energy for safe and stable lunar landing.

着陆缓冲机构的足垫首先与月面接触，产生相互作用力和相对运动，然后依靠缓冲器吸能缓冲，实现着陆器在月面的安全平稳着陆。

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Based on these studies, the methods of carrying out and establishing the terrestrial reference frame from space techniques are studied, and also the absolute plate motion model and relative motion model are studied and established.

在此基础上研究了由空间技术建立和实现参考系的方法以及板块运动的情况。

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The method solves an algebraic equation instead of a set of nonlinear differential equations to find the two initial conditions for the periodic relative rotating orbits for any eccentric orbit with nonlinear relative motion.

该方法不用求解非线性相对运动微分方程，只需解一个一元二次代数方程，就可给出任意偏心率和非线性条件下，两个具有明显物理意义的周期性相对运动初始条件。

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Considering the random thermal motion in the fabrication process, we applied the single-atom statistical model and combined with molecular dynamics simulations and first-principle calculation, to carefully analyze several important steps in the fabrication process and gave the relative experimental conditions.

考虑到在制备过程中热运动的随机性，我们应用单原子统计模型并结合分子动力学模拟及第一性原理计算细致地分析了制备过程中的几个重要步骤并给出了相关的实验条件。

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To consider magnetic conductance change of tooth harmonic caused by relative motion between stator and rotor, the transient field operation is applied to obtain the rotor iron loss, aiming to analyze the slotted core effect on rotor iron loss.

为考虑定、转子间相对运动引起的齿谐波磁导变化，即电机铁心开槽对转子损耗的影响，采用暂态场计算转子铁心涡流损耗。

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Relative Motion and Choice of Frame of Reference

相对运动与参考系的选择

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Based on two-impulse optimal control for relative motion, the formation planning problem is solved.

在相对运动二冲量最优控制的基础上, 求解了编队规划问题.

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Also relative motion trajectory for the tip of picking up wheel finger is analyzed, and picking characteristics of the stubble, casting stubble performance and condition is studied.

分析了关键部件捡拾轮齿尖相对运动轨迹，研究了根茬捡拾特性，抛茬性能及条件。

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Mission Trajectory Design and Control for Spacecraft Proximity Relative Motion

航天器近距离相对运动轨迹设计与控制

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This paper deduces the orbit maneuver equations for relative motion control of satellite formations based on the relative orbit elements.

导出了基于相对轨道要素的编队飞行卫星群轨道相对运动控制的轨道机动方程；

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By analyzing interior flow rules, the relative motion momentum equation and infinite vane theoretical head equation are established.

通过分析离心泵叶轮内部的流动规律，推导出了理想流体相对运动的动量方程和无限多叶片假设下的用出口角表达的理论扬程公式。

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The relative motion equation between missile and target in space interception is established.

建立了空间拦截中导弹与目标的相对运动方程。

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Don't forget that these effects are absolutely symmetrical reference in uniform relative motion.

不要忘记的是,在相对匀速运动系统中,这两种效应是完全对称的.

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The movement models of six degree-of-freedom missile , target, relative motion and others are derived.

本文建立了六 自由度 弹体运动模型 、 目标运动模型 、 相对运动模型等.

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In the two-body case, the approximate equations of relative motion on elliptic orbits are derived.

在二体假设下, 推导了椭圆轨道上相对运动方程的近似形式.

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The contact of solid and electrolyte solution makes the solid electriferous and produce electrical double layers, while the relative motion of solid and liquid occur to electrokinetic phenomenon.

固体与电解质溶液相接触，使固体表而带电并形成双电层结构。当固体与溶液相对移动时，就会发生动电现象。

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Controlling the position of a roller properly, the relative position between the cylinder and roller will be change so that a additional spiral angle will be produced. Therefore the relative axial motion of the cylinder can be controlled effectively.

调节从动轮的位置，可以改变筒体和滚轮的相对位置，产生附加螺旋角，能有效控制简体的轴向运动。

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Both the temperature difference and the relative motion of the compensation piece in relation to the magnetic needle are equivalent in effect to the volume variation of the alloy piece in sense of compensation. These are named the volume effect in the paper.

文中指出，这种温度差别和补偿片在磁针位置上的移动两者在补偿效果上均等效于合金片的体积变化，称之为体积效应。

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A relative motion model, considering the J_2 perturbation and suitable for motion in general elliptic orbit, was used.

相对运动模型中考虑了地球形状摄动的影响，且适用于在椭圆轨道上运行的目标航天器。

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The friction loss of saw chain is different from general friction loss, it contains relative motion surface friction loss and shock loss two factors.

锯链的摩擦损失不同于一般的摩擦损失，它包括相对运动表面的摩擦损失和冲击损失两个因素。

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The Analysis of Several Methods for Working Out the Differential Equations of a Particle Making Relative Motion

建立质点相对运动微分方程的方法浅析

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An optimal orbit maneuver method based on continuous low thrust was presented to solve relative motion control.

针对近距离相对运动的轨道控制问题，提出用常值小推力完成最优转移的方法。

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Based on relative motion equation of satellite state transferring, analytic solution of two impulse orbit transfer of constellation is derived, which is analytic equation of impulse control variable.

基于卫星相对运动状态转移方程，推导出了星座双脉冲式变轨的理论解，即所要施加的脉冲控制量的解析式；

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It can not be well distinguished relative motion from absolute motion in the AOW algorithm. This paper aims to resolve poor performance on mobility, the computational complexity of problems in the AOW.

AOW算法不能对相对运动和绝对运动进行很好的分辨，本文主要是解决AOW算法对移动性表现差，计算复杂等问题。

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Practical examples are used to illustrate the application of the instantaneous acceleration center in dynamics. The solutions to certain problems are greatly simplified by combining the instantaneous acceleration center with the theorem of moment of momentum of relative motion.

以实例说明加速度瞬心在运动学中的应用，加速度瞬心与相对运动动量矩定理结合在动力学中的应用，一些问题求解大为简化。

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Counter rotating turbine Effects of endwall relative motion on tip clearance flow in turbine rotors

正反转双转子涡轮机机匣相对转动对涡轮叶顶间隙流动的影响

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Motion is absolute while stagnation is relative.

运动是绝对的,而静止是相对的.

《简明英汉词典》

Fast measuring of axle distance difference based on monocular vision for ground mark recognition of vehicular wheel Mission Trajectory Design and Control for Spacecraft Proximity Relative Motion

单目视觉车轮接地印迹识别的轴距差快速测量航天器近距离相对运动轨迹设计与控制

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Using the concept of pseudo control variable, a simple state equation is constructed which describes the relative motion between an anti-ship missile and a target ship.

利用伪控制变量的概念，建立了简单的描述反舰导弹与目标舰艇相对运动的状态方程。

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First, the state transfer matrix of relative motion was introduced and the expression of relative motion with constant thrust control was educed.

首先给出相对运动状态转移矩阵，并推导出常推力控制情况下相对运动状态递推的解析表达式；

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