所建模型经复杂结构有限元方法分析，结果和试验相吻合，表明等效模型是合理的，方法是正确的。
Using complex structure finite element analysis, the theoretical prediction conforms with the experimental results very well, the equivalent model is reasonable, and the method is correct.
对金属氧化物变阻器的物理特性进行了分析，并完成了MOV元件的数学建模，将其等效为电感、电阻、二极管三部分。
This paper analyses the physical characteristic of MOV and gives out its mathematical model by making it equivalent to inductance, resistance and diode three parts.
阐述了体外预应力结构的概念与特性，分析了传统体外预应力混凝土梁桥建模方法——等效荷载法和荷载平衡法的缺点。
The shortcomings of the traditional modeling methods, the equivalent load method and the load balance method, in external pre-stressed concrete bridges were analyzed.
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