trackbed道床
trackn.轨道;跑道;踪迹;小路;乐曲v.追踪;跟踪
Tracking Comparison跟踪比较
track strengthening线路加固
tracker on the deck舰载跟踪设备
track stabilization轨道稳定
track reinforcement线路加固
Tracking trajectory轨迹跟踪
trackless tunneling隧道无轨掘进
Track Control Group轨道控制大队
track floppy-disk跟踪软盘
tracking initiation跟踪起始