轨迹

The model of the 2-RPS-2-UPS four freedom parallel robots was established,and the movement simulation of the assigned path was performed by using the ADAMS software.The coordinate curve of the execution component in the rate process was obtained.

运用ADAMS软件建立了2-RPS-2-UPS四自由度并联机器人的模型，并进行了给定轨迹的运动仿真，得到了运动过程中执行构件的运动轨迹坐标值曲线。

Using predecessor's experiences,also taking account of Coriolis force and three directional coal gas flow,the trajectory mathematical model of burden flow is built.

在总结前人料流轨迹计算模型的基础上，考虑了科氏力及三个方向煤气曳力对炉料运动的影响，建立了料流轨迹数学模型。

Relation between geometrical contour error of inner corner and machining condition is investigated by the experimental plan of Taguchi quality design. Through the quantitative analysis, the geometrical contour error is mainly affected by wire tension and flushing pressure. By regression analysis, a mathematical model is established to estimate cutting path error of corner cutting. According to the estimated cutting path error, the program path is corrected.

研究首先以田口式品质设计实验计画法来探讨加工参数与隅角形状误差间的关系，从变异数分析的结果得知，线张力与冲水压力是对於隅角精度影响最显著因子，应用回归分析建立转角加工路径误差量估测模式，利用此模式以预测不同加工条件下隅角加工路径误差量，依据预测加工路径误差量计算轨迹补偿量，实验结果证明本文所提出轨迹补偿策略可有效提高60%之隅角加工精度。

On the basis of the study on the shaping law to process the cowled integral impeller with ECCEM, the data depict the blade surface of the cowled integral impeller were processed, so that the tool-cathode was devised and its path in the process was obtained. Then the shape of the tool-cathode and its path were adjust according to the simulation of the computer.

由于带冠整体叶轮是整体叶轮结构设计的发展方向之一，特别在火箭发动机中，论文在研究展成电解加工带冠整体叶轮成型规律的基础上，分析处理带冠整体叶轮的型面数据，计算加工轨迹，设计工具阴极，并依据计算机仿真对加工轨迹和工具阴极的形状进行修正。

Honing action produces a characteristic criss-cross pattern on a bore known as crosshatch."Edge-broken"phenomenon often occurs at the corners of parts during brittle materials machining processes.

用有限单元法分析了磨粒作用在珩磨轨迹交叉点处的陶瓷材料应力状态，从理论上证明了粗加工中，珩磨轨迹交叉点处陶瓷材料的崩除型去除方式。

When propagating light\|ray passes through two fixed points in the gradient index mediums and a cuspidal variable\|point （at this point the trace equation of propagating light\|ray is non\|differentiable） at the borderline of two different GRIN mediums, the mathematical relationship, which the trace equation of propagating light\|ray and borderline equation of two different GRIN mediums should satisfy, is derived by the Fermat's principle and calculus of variation.

当光线通过梯度折射率介质中两个固定点和两个GRIN介质界线上的可动尖点（光线轨迹方程的不可微点）时，由费马原理和变分法运算推得传输光线的轨迹方程与两种不同GRIN介质的界线方程应满足的微分关系式。

By setting symmetric orbit traps (in particular, by using more complex bounded sets, such as chaotic attractors, as orbit traps), visually fascinating images with cyclic or dihedral symmetry can be created in this way.

通过设置具有对称性的轨迹井(同时也把轨迹井推广到更加复杂的有界集上，如混沌吸引子)，生成具有循环群对称性的彩色图像。

Using dead reckoning algorithm,a novel method is presented to implement the dynamic initial fine alignment for vehicular navigation system.

针对载车在运动状态下的初始对准问题，提出了利用航位推算算法进行精对准的新方法，阐述了航位推算轨迹和真实轨迹相似的原理。

The third is lubricous degree, symmetry and unsymmetry of knee and ankle joint track.

摘 要：在次最大强度下改变骑行变量坐角与坐高，结果表明：恢复阶段的曲柄角速度及膝、踝关节轨迹特征的理论论证与实际结果具有很好的一致性；参与本次实验的自行车运动员坐角不应小于72°、坐高不低于106%th的定位较为合理；初步确认了踏蹬技术的三种运动学诊断指标即提拉阶段的曲柄角速度、不同组合下踏蹬时上、下死点区域的大小，膝、踝关节中心轨迹的重叠程度、光滑程度、对称性与非对称性。

The trajectory of horizontal well was a wave line in vertical plane,therefore some sections are upward as well as corresponding drill stem restrained by the wellbore.

在铅垂平面内水平井眼轨迹为一条上下起伏的波浪线，因此在某一段井眼轨迹会呈现上凸弯曲，受其约束位于其中的钻柱也会存在上凸初弯曲。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。