在Ｒｅｉｓｓｎｅｒ厚板理论中，利用分离变量法得到挠度函数Ｗ（ｘ，ｙ）和应力函数ψ（ｘ，ｙ）的解。在这些解中．选择一些三角级数和多项式作为该问题的挠度函数Ｗ（ｘ，ｙ）和应力函数ψ（ｘ，ｙ），从而得到了两相邻边固定另两边任意支承矩形厚板弯曲问题的精确解．这里不需要繁琐地叠加． In the Reissner slab theory, the solution of the deflection function W(x,y) and the stress function ψ(x,y) are obtained by using the separation variable method. In these solutions. Some trigonometric series and polynomials are chosen as the deflection function W(x,y) and the stress function ψ(x,y) of the problem, so that the exact solution to the bending problem of any rectangular plate with two adjacent edges fixed and the other two sides supported is obtained. There is no need for complicated overlays here.