{
    "rail.mtrsteamloco.dangui": "单轨轨道 较旧(颜色偏黄)",
    "rail.mtrsteamloco.dangui_n": "单轨轨道 较新(颜色偏白)",
    "rail.mtrsteamloco.dangui_long": "单轨轨道 较长距离金属轨道",
    "rail.mtrsteamloco.dangui_long_middle": "单轨轨道 金属轨道中部梁结构"
}