Arrow with optional ends indicating flow path or direction of rectilinearmotion.
箭头，其指示流动路线或线性运动方向的端点可以选择。
2
According to motion analysis, the necessary conditions for realizing the radial rectilinearmotion were given and the kinematics and dynamic analysis of the cleaning robot were discussed.
通过运动分析给出了实现径向直线伸缩运动的必要条件，进行了净化机器人的运动学与动力学分析。
3
In the robot, two planetary gear mechanisms were assembled to realize the radial rectilinear stretching motion and a seal structure was used.