Shunting operation is the center of marshalling yard organization, and is the important component of the whole railway transportation.
调车是编组站工作组织的中心环节，是铁路运输过程的重要组成部分。Third, the optimization theories on marshalling of district local train are studied, which can improve marshalling efficiency greatly.
本文对编组钩计划的优化进行了研究和实现，最大程度的提高调车效率。AMERICAN grade 3 student Linda Brown had to walk a long way through a railway yard to get to her school in Topeka, Kansas.
曾经，美国一个三年级学生琳达·布朗每天要穿过一个铁路调车厂，走很长一段路，才能到达位于堪萨斯州托皮卡市的学校。Those measurements, combined with feedback from the driver, help the engineers determine where to set the car.
这些量测数据同车手的反馈帮助工程人员决定要如何调车。The Zagro trucks can move both along usual automobile roads and railway lines. In the subway they fulfill the role of a railmotor car.
扎格罗斯牌卡车可以在常见的公路上和列车轨道上行驶。在这条地铁线上，它们承担着调车机的角色。Even at age 65, Thomas remains slightly smaller than the rest of his engine friends in the roundhouse.
甚至到65岁了，火车头托马斯仍显得比在火车调车房里的其他火车头略年轻些。Normal bogies of trunk locomotives are not fitted to the switching services on the curve line with small radii.
常规的干线机车转向架不适应小半径曲线上的调车作业，随着机车轴重的增加，这一问题将更加突出。It improves the efficiency of shunting works and raises the automatic level of dispatching and supervision in the special railway.
采用远程集中控制系统，能够提高专用铁路管区内的调车作业效率和生产调度与监督管理的自动化水平。A diesel switcher of a road material field which is located in former Chian-Chi Coal Mine hopper.
位于原建基煤矿落煤场之砂石给配厂所使用的调车机。