The solution of the projection on inward concave composition surface of cylinder and cone is discussed. and the critical point on the projection is calculated with analytical method.
本文着重介绍内凹的圆柱和圆锥组合面上落影的求法，并尝试利用解析的方法，求出落影上的特殊点。
The pressure distribution on the surface of interference fit of retaining ring and rotor body is calculated by both finite element method and analytical method.
本文采用有限元数值方法和理论解析方法，对护环与转子本体配合面上的压力分布做了分析计算。
This article distinguishes two different sedimentary environments of Fuyu and Yang-dachengzi oil-bearing series in Sanzhao depression with geological analytical method of trend surface.
应用趋势面地质分析方法，区别出三肇拗陷扶余、杨大城子油层两种不同的沉积环境。
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