Geometry analysis and design procedure of complex pantograph structures are studied with joint coordinates as variables and parabolic shell is taken as an example.
以抛物面壳为例,介绍了用节点坐标为未知量分析复杂剪式铰结构几何问题的方法和几何设计的步骤。
In 2d polar coordinates, the exact solution to the Schrdinger equation was used to calculate the perturbation integral in a parabolic confinement potential.
受限势采用抛物形势,在二维平面极坐标下,用薛定谔方程的精确解析解进行计算。
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