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
tracking gate field of vie跟踪门视场|波门视场
trackless mining technique无轨采矿
Trackline Multiunit Return轨迹线多装置回收
Tracking test of responder应答机跟踪试验
Tracking Light Electronics轻型跟踪电子设备
Track--Subgrade system轨道-路基系统