Using reverse engineering procedure with control theory to analyze and identify, the mathematic model of dynamic performance was completed.
采用反向工程试验法，应用控制理论分析辨识，得到了其动态特性的数学模型。
The article demonstrates the mathematic model and damping characteristics of ERF dampener based on experiment, and presents some engineering idea for their structure.
在实验基础上论证了ERF减振器数学模型和阻尼特性，并给出结构设计思想。
The optimized mathematic model for the light fill expressway realizes the program using objects algorithm, which has proved to be effective in engineering practice.
叙述了低路堤高速公路纵断面优化设计数学模型，采用面向对象的编程思想编制的算法实现程序。
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