trackersn.追踪者（tracker的复数形式）trackn.轨道；跑道；踪迹；小路；乐曲v.追踪；跟踪track and field in Liaoning辽宁田径tracking by a single camera单目跟踪Track of subsatellite point星下点轨迹tracking and display system跟踪与显示系统trackage classified by speed按速度分级的（铁路）线路tracked self-propelled gun履带式自行火炮track alignment irregularity轨向不平顺tracking-while-searching搜索加跟踪tracking interference source跟踪干扰源track-and- field classes田径