track on[计] 启动跟踪显示程序trackn.轨道；跑道；踪迹；小路；乐曲v.追踪；跟踪tracker station跟踪站Track stiffness轨道刚度track rail bond道轨导电接头,铁轨连接器,轨端连接线track-mounted链轨式track mechanism轨道机构track of cutter刀具轨迹track crossover渡线track stability轨道稳定性track fastening轨道连接件tracking-beam跟踪波束