crust-mantle coupling model 基本例句 有限元法 In this paper, the finite element method for this nonlinear model is given.本文研究这一模型的非线性有限元法。 Modal frequency and vibration response of the gear box are computed by structural FEM with a 3-D FE model.建立齿轮箱三维有限元模型,采用结构有限元法计算齿轮箱模态频率和振动响应。