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；
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.
本文用矩阵处理球面折射系统光学问题来介绍矩阵方法在几何光学中的应用。
We introduce the application of matrix method in geometrical optics by dealing spherical refraction system with matrix method.
在弹性力学求解新体系中，将对偶向量进行重新排序后，提出了一种新的对偶微分矩阵，对于有一个方向正交的各向异性材料的三维弹性力学问题发现了一种新的正交关系。
In a new systematic methodology for theory of elasticity a new dual differential matrix is presented by the dual vectors over again sorted and a new orthogonality relationship is discover.
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