In my model, Bicycle doesn't have an equivalent at all in the NIEM model, so I need to create a new element and a new corresponding complex type.
在我的模型中，Bicycle在NIEM模型中根本就没有等价元素，所以我需要创建一个新元素和一个相应的新复杂类型。
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.
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。
The neural network model of the equivalent complex refractive of random rain media is developed by means of the improved BP algorithm, based on the electromagnetic wave propagation theory.
利用改进的BP算法，结合电波传播理论，建立了随机雨介质的等效复折射指数的神经网络模型。
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