hump shunting yard驼峰调车场
hump marshalling yard驼峰编组场
automatic hump yard自动化驼峰
small capacity hump yard小能力驼峰
mechanized hump yard equipment机械化驼峰设备
hump yard classification throat驼峰调车场头部
capacity of hump yard驼峰调车场能力
hump yard speed measuring编组站测速
and Hump yard驼峰场