track up前进跟踪trackn.轨道；跑道；踪迹；小路；乐曲v.追踪；跟踪track selection磁迹选择trackless drift无轨巷道track calibrate磁道校准track shoe face履带板接地表面tracking source跟踪干扰源track vibration轨道振动Track parameter轨道参数track transfers轨道传输track diffusing轨迹发散track scarifier轮迹消除器