curved train path 弯曲列车运行线
freight train path 货物列车运行线
reserved train path 备用列车运行线
available train path 可用列车进路
train path management 运行线管理
train path in reserve 备用列车运行线
redundance among train path groups 线群间冗余
train flow path 车流径路
train movement path 列车运行轨迹
以上来源于: WordNet
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