trackbed道床
trackn.轨道;跑道;踪迹;小路;乐曲v.追踪;跟踪
track irregularities轨道不平顺
track and dolly shot推拉升降
tracking performance跟踪性能
track after landfall登陆后
trackless equipments无轨设备
track occupancy lamp轨道占用表示灯
track receiving coil轨道接收线圈
tracks the appraisal跟踪评价
Track Data Simulator跟踪数据模拟器
Tracked mobile robot履带式移动机器人