查询词典 trajectory

Aimed at 9-degree of freedom hyper-redundant module robot in intra-vehicular robot system, attention is given to the avoiding joint limits as an optimal mark. Two different iterative algorithms considering fault-tolerance for trajectory planning of redundant robot in Cartesian space are then proposed by using the method of differential locomotion. The first algorithm is for linear-path in which the pose of manipulator can be changed, the second is for circular-path in the plane decided by three noncollinear arbitrary points in the space. Experiments on the specimen robot platform are performed to validate the above algorithms.

以太空舱内机器人系统9-自由度超冗余模块机器人为研究对象，以避关节极限作为优化指标，考虑容错性能，利用微分运动的方法，分别提出了适于计算机迭代计算的冗余机器人在笛卡儿空间进行手爪姿态可变时的直线轨迹优化算法和手爪经过空间中任意不共线3点决定的平面内的圆弧轨迹优化算法。

Direction and length of trajectory are the key of posterior atlano-occipital transarticular fixation, if combined with C1-C2 transarticular fixation, it will be an ideal fixation method for occipitocervical fusion.

寰枕关节后路经关节螺钉植入存在一定的方向性和钉道长度，结合后路C1-C2经关节螺钉内固定后可视为能满足当前临床需要的一种相对理想的枕颈融合内固定术式。

Abstract］ Objective To explore the accuracy and safety of safety drillprepared for cervical pedicle screw trajectory.Methods Fourteen adult cadaver specimens of cervical spine（C3～C7）with intact structures including ligaments and perivertebral muscles were reserved and used.

目的 探索安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性方法随机取14具福尔马林浸泡的成人颈椎标本（C3～C7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。

Moreover, combining with dynamic trajectory simulation of different kinds of aircraft with atmosphere perturbance models, a software package of radar signatures prediction and analysis is presented.

二、分析了活动部件周期调制特征产生机理和频谱结构特点，并通过建立通用仿真模型描述直升机旋翼，螺旋桨以及喷气引擎压缩叶片的动态电磁散射现象；针对活动部件周期调制，阐述了自相关特征提取和子波包特征空间变换的基本原理；并利用模糊模式比较完成基于空中目标活动部件周期调制特征的分类识别试验，给出识别结果。

They pulled the car to leave the original trajectory, no matter how Phaethon pulled Shi Jin Jiang Sheng, the horse is not aware of the strength of his tiny, but simply to wild Haowumubiao car pulled up.

它们拉着车子离开了原来的轨迹，无论法厄同怎样使劲拉扯缰绳，马儿也感觉不到他微小的力量，后来干脆拉着车子毫无目标地狂奔起来。

Then, relying on the phaseal characteristics and trajectory of teacher professional development, the motivity, mechanism, nuclear cycle and generic model of self-renewal approach to professional development were discussed at a more generalized level.

接着，又在教师专业发展阶段特征和基本走向的基础上，在更一般化的层次上，探讨&自我更新&取向教师专业发展的动力、机制、基本循环和一般模型。

According to the structure and working principle of Pneumatically robotic manipulator with 3-DOF, the joint controller was designed based on LabVIEW real-time control module. The experiments of single joint movement and trajectory tracking with three joints have been carried out.

根据3自由度气动机械手的组成及工作原理构造了基于 LabVIEW 的实时控制系统并进行了单关节控制及空间轨迹跟踪方面的实验研究。

Finally, the extraction and description of basketball trajectory is studied preparatorily. And experiment platform is built.

对篮球运动路线的提取和描述进行了初步的研究，并建立篮球分割和跟踪实验平台。

By analyzing the general theories of the political development path, the author emphatically investigates the basic problems of the Chinese political development path, and teases reasonedly its shaping trajectory. Accordingly, the author prospects the goal orientation and makes out path selections of Chinese political development in the 21st century.

本文通过对政治发展道路的一般理论进行分析后，着重考察了中国特色政治发展道路的基本问题，对中国特色政治发展道路的形成发展轨迹进行了详尽梳理，并拟在此基础上前瞻21世纪中国政治发展的目标取向和路径选择。

The trajectory of the center point of cornea and the angle of eyeball was recorded by smear photography during the normal human eye saccadic movements. It was noticed that in the eye saccadic movement, the eye was not only rotating around vertical axis, but also performing a little rotation around coranal axis.

用高速摄影记录了正常人眼水平扫描运动时角膜中点的运动轨迹、眼球的转角等随时间的变化，发现眼球水平扫描运动时，不仅有绕垂直轴的转动，而且还有稍量绕横轴的转动。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。