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本文用配点残差法求算了无限长园柱体的单变量一维不稳态导热问题，并给出了对应的配置矩阵，本方法计算结果可靠，当内部配置点数为３时，无限长园柱体内的温度分布与解析解符合良好
In this paper, the problem of unidimensional unsteady thermal conductivity of infinite cylinders with infinite cylinders is solved by the point-point residual method and the corresponding configuration matrix is given. The calculation results of the method are reliable. When the internal configuration points are 3, The temperature distribution in the cylinder is in good agreement with the analytical solution