Secondly, based on the further research of the kinematics of five DOF manipulator, kinematics model is made with the method of D-H, joint velocity and Jacobian matrix are also carried out.
其次，在深入研究五自由度机械手的运动学问题的基础上，用D-H法建立了五自由度机械手运动学模型并分析了机械手的关节速度与雅可比矩阵；
These conclusions have some significance for the research of the effect of the vehicles with increased velocity on railway bridge structures.
以上结论对于提速列车对桥梁结构的影响研究具有重要的实际意义。
A thorough research on the crucial velocity of sucking airflow affected by annular jet is conducted.
对环形射流作用下吸气流动的临界射流速度进行了全面研究。
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