track up前进跟踪trackn.轨道；跑道；踪迹；小路；乐曲v.追踪；跟踪track-planning航迹规划track supervisor轨道监察员Tracking sensors跟踪传感器track distortion磁道畸变tracking program追踪程序Track Bar Toggle轨迹栏标记track inspection轨道检测track arithmetic跟踪算法track-rod bolt横联杆螺栓track encryption磁道加密