Traini特拉伊尼trainn.列车；火车；行列；一系列vt.训练；培训；瞄准vi.进行锻炼，接收训练；练习train receiving route列车到达进路train-bridge system车桥系统train order operation行车命令运行法train safety detection列车安全检测Trains haul freight.火车拖运货物。train shunt resistance列车分路阻力train talented persons培养人才train number describer列车车次[编号]叙述器train assembly station铁路列车编组站Train electric braking列车电制动