任何模型类型都可工作，只要它符合下面描述的特性。

Any model type should work, as long as it meets the properties described below.

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使模型较准确的反映了心轨的结构特性和工作状况。

So the model can reflect structure characteristic and work state of point rail exactly.

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使模型较准确的反映了心轨的结构特性和工作状况。

So the model can reflect structure characteristic and work state of point rail exactly.

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