然后给出了机器人滚动和滑动的运动条件，运用牛顿力学方法建立了机器人的滚动和滑动动力学模型。
Then, the rolling and sliding conditions are given, and the rolling and sliding dynamic models of the robot based on Newton mechanics are established.
采用牛顿-欧拉方法对物料抓取机械手操作臂进行了动力学分析，为步进电机的选型和结构优化提供了理论依据。
The Newton-Euripides method is put into use in analysis the object holding manipulator dynamics and the result will provide theory evidence in step motor selecting and structure optimizing.
应用拉格朗日方程求解椭圆摆的周期，比用牛顿力学的方法简明方便。
It is more conciseness and convenience to solve the period of elliptical pendulum by using Lagrange equation than using Newtonian mechanics.
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