trackn.轨道；跑道；踪迹；小路；乐曲v.追踪；跟踪Track test车辙试验track bond钢轨对接track maul道钉锤track flag磁道跟随器track mode自动跟踪方式track gage轨距规,轨距,(英:track gauge)履带距track mark磁道标track vest场地自行车运动服track bolt轨条螺栓track roadn.纤道