段管线 depot siding

[名词解释] 机务段 depot

[名词解释] 车辆段 vehicle depot

[名词解释] 机务折返段 return depot

[名词解释] 混合机务段 combined depot

[名词解释] 道岔侧线 siding of turnout

[名词解释] 避难线 refuge siding

[名词解释] 整备线 servicing siding

[名词解释] 段管线

[名词解释] 安全线 catch siding

[名词解释] 专用线 industrial siding