Strain mode parameter and mode identification theory originate from mechanical engineering territory. They are used to structure engineering lately.
应变模态参数和模式识别理论来源于机械工程领域，是在最近十来年才引入建筑结构中来的。
The engineering example proves that the parameter identification method will make the computer model accordant to the practice structure, and better control to construction stage will be achieved.
实例证明采用该方法进行参数识别可以使计算模型基本上与实际结构相一致，在此基础上可以实现时施工状态进行更好的控制。
Here, we suppose that the model structure is unknown. A unified description method of model set of multi-model system, including the identification method of model structure and parameter, is given.
这里不假定模型结构已知，给出了多模型系统模型族的统一描述方法，包括模型结构与参数的辨识方法。
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