building model短语¹⁴⁴⁹⁷²⁺² 基本例句 建立模型 The methods of analyzing the strength of complex mechanical structure were studied through the application of the finite element method, and the methods of building model and gridding were discussed. 研究了用有限元法对复杂机械结构进行强度分析的方法和步骤，对复杂机械结构的建模方法和网格划分进行了探讨。 cnki