该计划是为模拟的运动学和动力学的平面和空间机械系统。
The program is intended for simulation of kinematics and dynamics of planar and spatial mechanical systems.
机械系统的运动学与动力学包括刚体的平面移动。
Kinematics and dynamics of mechanical systems including rigid bodies in plane motion.
本文研究平面滚珠传动的结构及运动学，根据结构特征，推导传动比公式，分析传动特点。
In this paper, the authors research the structure and kinematics of planar ball drive, derive formulas of transmission ratio according to the structural feature and analyse driving characteristics.
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