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 following servo system磁道跟踪伺服系统Track and verify the results追踪和验证结果track-type heavy machinery履带式重型机械track positional information磁道定位信息track and field theory lesson田径理论课tracked wall-climbing robot履带式爬壁机器人Track of my freewheeling life休闲人生Tracking Target State with TD利用TD估计目标状态track vibration accelerations轨道振动加速度track gauge widening of curve曲线轨距加宽