MATLAB language and its graphic interface is used to simulate CNC program in geometry and motion, and to simulate the manipulating panel of CNC machine tool in its fundamental function.

将MATLAB语言及其图形界面用于数控加工程序几何及运动仿真，并对数控机床操作面板的基本功能进行操作仿真。

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The contact pretension between the layers of cylindrical structure concerns the non-linearity of geometry and material, as well as the influence of interface friction.

多层圆柱结构的接触预紧问题，涉及到几何非线性和材料非线性以及接触面上摩擦力的影响。

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Variable area can clearly show the interface geometry and moreover, it gives a strong intuition, but it has a disadvantage in depicting the features of the dynamics.

变面积剖面显示技术能够反映界面的形态，直观性强，外形与地质剖面接近，其缺点波的动力学特征不清。

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