automatic marshalling controller,hump yard signal box,first oint behind ravity shuntin是什么意思、英文翻译及中文解
automaticmarshallingcontroller,humpyardsignalbox,firstointbehindravityshuntin词语：automaticmarshallingcontroller,humpyardsignalbox,firstointbehindravityshuntin解释：自动化编组控制器、驼峰调车场信号塔词典...