对于环形路网结构分为概率路径识别模型和准确路径识别模型。
The path marking model in probability way and the path marking model in accurate way can be applied for the annular structure speedway network.
准确路径识别模型是指依据图的支撑树理论，添加标识站，把环形路网结构变为树状结构的模型。
In accordance with the prop tree diagram theory, adding the marking stations, the path-marking model in accurate way changes he annular structure speedway network into the tree structure.
应用推荐